diff --git a/toolchain/check/import_ref.cpp b/toolchain/check/import_ref.cpp
index 306c92603d406..b374b160fd3b3 100644
--- a/toolchain/check/import_ref.cpp
+++ b/toolchain/check/import_ref.cpp
@@ -1287,8 +1287,8 @@ static auto TryResolveTypedInst(ImportRefResolver& resolver,
   return ResolveAs<SemIR::AssociatedEntity>(
       resolver, {.type_id = resolver.local_context().GetTypeIdForTypeConstant(
                      type_const_id),
-                 .decl_id = decl_id,
-                 .index = inst.index});
+                 .index = inst.index,
+                 .decl_id = decl_id});
 }
 
 static auto TryResolveTypedInst(ImportRefResolver& resolver,
diff --git a/toolchain/check/interface.cpp b/toolchain/check/interface.cpp
index a1df73cffab17..03cb7b44e169a 100644
--- a/toolchain/check/interface.cpp
+++ b/toolchain/check/interface.cpp
@@ -36,7 +36,7 @@ auto BuildAssociatedEntity(Context& context, SemIR::InterfaceId interface_id,
       self_type_id, context.insts().Get(decl_id).type_id());
   return context.AddInst<SemIR::AssociatedEntity>(
       context.insts().GetLocId(decl_id),
-      {.type_id = type_id, .decl_id = decl_id, .index = index});
+      {.type_id = type_id, .index = index, .decl_id = decl_id});
 }
 
 }  // namespace Carbon::Check
diff --git a/toolchain/check/testdata/class/generic/import.carbon b/toolchain/check/testdata/class/generic/import.carbon
index b3d07a0854626..65cb75b1abdba 100644
--- a/toolchain/check/testdata/class/generic/import.carbon
+++ b/toolchain/check/testdata/class/generic/import.carbon
@@ -268,7 +268,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity imports.%import_ref.10, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, imports.%import_ref.10 [symbolic]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.2, @impl.1(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.4: <witness> = interface_witness (%Convert.2) [symbolic]
@@ -285,7 +285,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.type.5: type = fn_type @Convert.1, @ImplicitAs(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.5: %Convert.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %ImplicitAs.type.5, %Convert.type.5 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity imports.%import_ref.17, element0 [template]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.17 [template]
 // CHECK:STDOUT:   %Convert.type.6: type = fn_type @Convert.5, @impl.4(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.6: %Convert.type.6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.10: <witness> = interface_witness (%Convert.6) [symbolic]
@@ -297,7 +297,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.7: %Convert.type.7 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.11: type = facet_access_type %Self.4 [symbolic]
 // CHECK:STDOUT:   %.12: type = assoc_entity_type %As.type.2, %Convert.type.7 [symbolic]
-// CHECK:STDOUT:   %.13: %.12 = assoc_entity imports.%import_ref.27, element0 [symbolic]
+// CHECK:STDOUT:   %.13: %.12 = assoc_entity element0, imports.%import_ref.27 [symbolic]
 // CHECK:STDOUT:   %Convert.type.8: type = fn_type @Convert.7, @impl.5(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.8: %Convert.type.8 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.14: <witness> = interface_witness (%Convert.8) [symbolic]
@@ -313,7 +313,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.type.11: type = fn_type @Convert.6, @As(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.11: %Convert.type.11 = struct_value () [template]
 // CHECK:STDOUT:   %.18: type = assoc_entity_type %As.type.5, %Convert.type.11 [template]
-// CHECK:STDOUT:   %.19: %.18 = assoc_entity imports.%import_ref.34, element0 [template]
+// CHECK:STDOUT:   %.19: %.18 = assoc_entity element0, imports.%import_ref.34 [template]
 // CHECK:STDOUT:   %Convert.type.12: type = fn_type @Convert.10, @impl.8(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.12: %Convert.type.12 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.20: <witness> = interface_witness (%Convert.12) [symbolic]
@@ -349,8 +349,8 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.type.13: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
 // CHECK:STDOUT:   %Convert.13: %Convert.type.13 = struct_value () [template]
 // CHECK:STDOUT:   %.32: type = assoc_entity_type %ImplicitAs.type.6, %Convert.type.13 [template]
-// CHECK:STDOUT:   %.33: %.32 = assoc_entity imports.%import_ref.10, element0 [template]
-// CHECK:STDOUT:   %.34: %.2 = assoc_entity imports.%import_ref.44, element0 [symbolic]
+// CHECK:STDOUT:   %.33: %.32 = assoc_entity element0, imports.%import_ref.10 [template]
+// CHECK:STDOUT:   %.34: %.2 = assoc_entity element0, imports.%import_ref.44 [symbolic]
 // CHECK:STDOUT:   %Convert.type.14: type = fn_type @Convert.2, @impl.1(%.24) [template]
 // CHECK:STDOUT:   %Convert.14: %Convert.type.14 = struct_value () [template]
 // CHECK:STDOUT:   %.35: <witness> = interface_witness (%Convert.14) [template]
@@ -448,7 +448,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.2)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity imports.%import_ref.10, element0 [symbolic = %.2 (constants.%.3)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity element0, imports.%import_ref.10 [symbolic = %.2 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -468,7 +468,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.6, @As(%Dest) [symbolic = %Convert.type (constants.%Convert.type.7)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.7) = struct_value () [symbolic = %Convert (constants.%Convert.7)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.7) [symbolic = %.1 (constants.%.12)]
-// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity imports.%import_ref.27, element0 [symbolic = %.2 (constants.%.13)]
+// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity element0, imports.%import_ref.27 [symbolic = %.2 (constants.%.13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -1332,7 +1332,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.8: %Convert.type.8 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.22: type = facet_access_type %Self.4 [symbolic]
 // CHECK:STDOUT:   %.23: type = assoc_entity_type %As.type.2, %Convert.type.8 [symbolic]
-// CHECK:STDOUT:   %.24: %.23 = assoc_entity imports.%import_ref.34, element0 [symbolic]
+// CHECK:STDOUT:   %.24: %.23 = assoc_entity element0, imports.%import_ref.34 [symbolic]
 // CHECK:STDOUT:   %Convert.type.9: type = fn_type @Convert.7, @impl.5(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.9: %Convert.type.9 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.25: <witness> = interface_witness (%Convert.9) [symbolic]
@@ -1348,7 +1348,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.type.12: type = fn_type @Convert.6, @As(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.12: %Convert.type.12 = struct_value () [template]
 // CHECK:STDOUT:   %.29: type = assoc_entity_type %As.type.5, %Convert.type.12 [template]
-// CHECK:STDOUT:   %.30: %.29 = assoc_entity imports.%import_ref.41, element0 [template]
+// CHECK:STDOUT:   %.30: %.29 = assoc_entity element0, imports.%import_ref.41 [template]
 // CHECK:STDOUT:   %Convert.type.13: type = fn_type @Convert.10, @impl.8(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.13: %Convert.type.13 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.31: <witness> = interface_witness (%Convert.13) [symbolic]
@@ -1421,7 +1421,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.6, @As(%Dest) [symbolic = %Convert.type (constants.%Convert.type.8)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.8) = struct_value () [symbolic = %Convert (constants.%Convert.8)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.8) [symbolic = %.1 (constants.%.23)]
-// CHECK:STDOUT:   %.2: @As.%.1 (%.23) = assoc_entity imports.%import_ref.34, element0 [symbolic = %.2 (constants.%.24)]
+// CHECK:STDOUT:   %.2: @As.%.1 (%.23) = assoc_entity element0, imports.%import_ref.34 [symbolic = %.2 (constants.%.24)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -1945,7 +1945,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity imports.%import_ref.10, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, imports.%import_ref.10 [symbolic]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.2, @impl.1(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.4: <witness> = interface_witness (%Convert.2) [symbolic]
@@ -1962,7 +1962,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.type.5: type = fn_type @Convert.1, @ImplicitAs(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.5: %Convert.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %ImplicitAs.type.5, %Convert.type.5 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity imports.%import_ref.17, element0 [template]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.17 [template]
 // CHECK:STDOUT:   %Convert.type.6: type = fn_type @Convert.5, @impl.4(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.6: %Convert.type.6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.10: <witness> = interface_witness (%Convert.6) [symbolic]
@@ -1974,7 +1974,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.7: %Convert.type.7 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.11: type = facet_access_type %Self.4 [symbolic]
 // CHECK:STDOUT:   %.12: type = assoc_entity_type %As.type.2, %Convert.type.7 [symbolic]
-// CHECK:STDOUT:   %.13: %.12 = assoc_entity imports.%import_ref.27, element0 [symbolic]
+// CHECK:STDOUT:   %.13: %.12 = assoc_entity element0, imports.%import_ref.27 [symbolic]
 // CHECK:STDOUT:   %Convert.type.8: type = fn_type @Convert.7, @impl.5(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.8: %Convert.type.8 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.14: <witness> = interface_witness (%Convert.8) [symbolic]
@@ -1990,7 +1990,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.type.11: type = fn_type @Convert.6, @As(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.11: %Convert.type.11 = struct_value () [template]
 // CHECK:STDOUT:   %.18: type = assoc_entity_type %As.type.5, %Convert.type.11 [template]
-// CHECK:STDOUT:   %.19: %.18 = assoc_entity imports.%import_ref.34, element0 [template]
+// CHECK:STDOUT:   %.19: %.18 = assoc_entity element0, imports.%import_ref.34 [template]
 // CHECK:STDOUT:   %Convert.type.12: type = fn_type @Convert.10, @impl.8(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.12: %Convert.type.12 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.20: <witness> = interface_witness (%Convert.12) [symbolic]
@@ -2076,7 +2076,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.2)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity imports.%import_ref.10, element0 [symbolic = %.2 (constants.%.3)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity element0, imports.%import_ref.10 [symbolic = %.2 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -2096,7 +2096,7 @@ class Class(U:! type) {
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.6, @As(%Dest) [symbolic = %Convert.type (constants.%Convert.type.7)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.7) = struct_value () [symbolic = %Convert (constants.%Convert.7)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.7) [symbolic = %.1 (constants.%.12)]
-// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity imports.%import_ref.27, element0 [symbolic = %.2 (constants.%.13)]
+// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity element0, imports.%import_ref.27 [symbolic = %.2 (constants.%.13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
diff --git a/toolchain/check/testdata/function/builtin/method.carbon b/toolchain/check/testdata/function/builtin/method.carbon
index 543f2f80dc36d..a0f3618bd78b5 100644
--- a/toolchain/check/testdata/function/builtin/method.carbon
+++ b/toolchain/check/testdata/function/builtin/method.carbon
@@ -27,7 +27,7 @@ var arr: [i32; (1 as i32).(I.F)(2)];
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %I.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %.4: Core.IntLiteral = int_value 32 [template]
 // CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
 // CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
@@ -155,7 +155,7 @@ var arr: [i32; (1 as i32).(I.F)(2)];
 // CHECK:STDOUT:     %return.param: ref @F.1.%.loc12_14.1 (%.1) = out_param runtime_param2
 // CHECK:STDOUT:     %return: ref @F.1.%.loc12_14.1 (%.1) = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc12: %.2 = assoc_entity %F.decl, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc12: %.2 = assoc_entity element0, %F.decl [template = constants.%.3]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/function/builtin/no_prelude/call_from_operator.carbon b/toolchain/check/testdata/function/builtin/no_prelude/call_from_operator.carbon
index 702eb8c170985..f2c841aaac431 100644
--- a/toolchain/check/testdata/function/builtin/no_prelude/call_from_operator.carbon
+++ b/toolchain/check/testdata/function/builtin/no_prelude/call_from_operator.carbon
@@ -62,7 +62,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Op.type.1: type = fn_type @Op.1 [template]
 // CHECK:STDOUT:   %Op.1: %Op.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %Add.type, %Op.type.1 [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @Add.%Op.decl, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @Add.%Op.decl [template]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
 // CHECK:STDOUT:   %As.type.1: type = generic_interface_type @As [template]
@@ -73,7 +73,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Convert.type.1: type = fn_type @Convert.1, @As(%T) [symbolic]
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %As.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity @As.%Convert.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, @As.%Convert.decl [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.1: type = generic_interface_type @ImplicitAs [template]
 // CHECK:STDOUT:   %ImplicitAs: %ImplicitAs.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %ImplicitAs.type.2: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic]
@@ -82,7 +82,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.2, @ImplicitAs(%T) [symbolic]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.2 [symbolic]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity @ImplicitAs.%Convert.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, @ImplicitAs.%Convert.decl [symbolic]
 // CHECK:STDOUT:   %.10: Core.IntLiteral = int_value 32 [template]
 // CHECK:STDOUT:   %i32: type = int_type signed, %.10 [template]
 // CHECK:STDOUT:   %Op.type.2: type = fn_type @Op.2 [template]
@@ -95,7 +95,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Convert.type.4: type = fn_type @Convert.1, @As(%i32) [template]
 // CHECK:STDOUT:   %Convert.4: %Convert.type.4 = struct_value () [template]
 // CHECK:STDOUT:   %.13: type = assoc_entity_type %As.type.3, %Convert.type.4 [template]
-// CHECK:STDOUT:   %.14: %.13 = assoc_entity @As.%Convert.decl, element0 [template]
+// CHECK:STDOUT:   %.14: %.13 = assoc_entity element0, @As.%Convert.decl [template]
 // CHECK:STDOUT:   %.15: %As.type.2 = facet_value Core.IntLiteral, Core.IntLiteral [symbolic]
 // CHECK:STDOUT:   %.16: <witness> = interface_witness (%Convert.3) [template]
 // CHECK:STDOUT:   %ImplicitAs.type.3: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [template]
@@ -104,7 +104,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Convert.type.6: type = fn_type @Convert.2, @ImplicitAs(%i32) [template]
 // CHECK:STDOUT:   %Convert.6: %Convert.type.6 = struct_value () [template]
 // CHECK:STDOUT:   %.17: type = assoc_entity_type %ImplicitAs.type.3, %Convert.type.6 [template]
-// CHECK:STDOUT:   %.18: %.17 = assoc_entity @ImplicitAs.%Convert.decl, element0 [template]
+// CHECK:STDOUT:   %.18: %.17 = assoc_entity element0, @ImplicitAs.%Convert.decl [template]
 // CHECK:STDOUT:   %.19: %ImplicitAs.type.2 = facet_value Core.IntLiteral, Core.IntLiteral [symbolic]
 // CHECK:STDOUT:   %.20: <witness> = interface_witness (%Convert.5) [template]
 // CHECK:STDOUT:   %ImplicitAs.type.4: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [template]
@@ -113,7 +113,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Convert.type.8: type = fn_type @Convert.2, @ImplicitAs(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.8: %Convert.type.8 = struct_value () [template]
 // CHECK:STDOUT:   %.21: type = assoc_entity_type %ImplicitAs.type.4, %Convert.type.8 [template]
-// CHECK:STDOUT:   %.22: %.21 = assoc_entity @ImplicitAs.%Convert.decl, element0 [template]
+// CHECK:STDOUT:   %.22: %.21 = assoc_entity element0, @ImplicitAs.%Convert.decl [template]
 // CHECK:STDOUT:   %.23: %ImplicitAs.type.2 = facet_value %i32, %i32 [symbolic]
 // CHECK:STDOUT:   %.24: <witness> = interface_witness (%Convert.7) [template]
 // CHECK:STDOUT: }
@@ -234,7 +234,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:     %return.param: ref @Op.1.%.loc8_15.1 (%.1) = out_param runtime_param2
 // CHECK:STDOUT:     %return: ref @Op.1.%.loc8_15.1 (%.1) = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc8: %.2 = assoc_entity %Op.decl, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc8: %.2 = assoc_entity element0, %Op.decl [template = constants.%.3]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -252,7 +252,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @As(%T.loc11_14.2) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.loc12_32.2: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.1) [symbolic = %.loc12_32.2 (constants.%.5)]
-// CHECK:STDOUT:   %.loc12_32.3: @As.%.loc12_32.2 (%.5) = assoc_entity %Convert.decl, element0 [symbolic = %.loc12_32.3 (constants.%.6)]
+// CHECK:STDOUT:   %.loc12_32.3: @As.%.loc12_32.2 (%.5) = assoc_entity element0, %Convert.decl [symbolic = %.loc12_32.3 (constants.%.6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @As.%As.type (%As.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.2)]
@@ -272,7 +272,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:       %return.param: ref @Convert.1.%T (%T) = out_param runtime_param1
 // CHECK:STDOUT:       %return: ref @Convert.1.%T (%T) = return_slot %return.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %.loc12_32.1: @As.%.loc12_32.2 (%.5) = assoc_entity %Convert.decl, element0 [symbolic = %.loc12_32.3 (constants.%.6)]
+// CHECK:STDOUT:     %.loc12_32.1: @As.%.loc12_32.2 (%.5) = assoc_entity element0, %Convert.decl [symbolic = %.loc12_32.3 (constants.%.6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -291,7 +291,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.2, @ImplicitAs(%T.loc15_22.2) [symbolic = %Convert.type (constants.%Convert.type.2)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.2) = struct_value () [symbolic = %Convert (constants.%Convert.2)]
 // CHECK:STDOUT:   %.loc16_32.2: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.2) [symbolic = %.loc16_32.2 (constants.%.8)]
-// CHECK:STDOUT:   %.loc16_32.3: @ImplicitAs.%.loc16_32.2 (%.8) = assoc_entity %Convert.decl, element0 [symbolic = %.loc16_32.3 (constants.%.9)]
+// CHECK:STDOUT:   %.loc16_32.3: @ImplicitAs.%.loc16_32.2 (%.8) = assoc_entity element0, %Convert.decl [symbolic = %.loc16_32.3 (constants.%.9)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.3)]
@@ -311,7 +311,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:       %return.param: ref @Convert.2.%T (%T) = out_param runtime_param1
 // CHECK:STDOUT:       %return: ref @Convert.2.%T (%T) = return_slot %return.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %.loc16_32.1: @ImplicitAs.%.loc16_32.2 (%.8) = assoc_entity %Convert.decl, element0 [symbolic = %.loc16_32.3 (constants.%.9)]
+// CHECK:STDOUT:     %.loc16_32.1: @ImplicitAs.%.loc16_32.2 (%.8) = assoc_entity element0, %Convert.decl [symbolic = %.loc16_32.3 (constants.%.9)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -586,14 +586,14 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.3: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %As.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity imports.%import_ref.6, element0 [symbolic]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, imports.%import_ref.6 [symbolic]
 // CHECK:STDOUT:   %.6: type = facet_access_type %Self.1 [symbolic]
 // CHECK:STDOUT:   %As.type.3: type = facet_type <@As, @As(%i32)> [template]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.1, @As(%i32) [template]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.7: type = assoc_entity_type %As.type.3, %Convert.type.2 [template]
-// CHECK:STDOUT:   %.8: %.7 = assoc_entity imports.%import_ref.6, element0 [template]
-// CHECK:STDOUT:   %.9: %.4 = assoc_entity imports.%import_ref.7, element0 [symbolic]
+// CHECK:STDOUT:   %.8: %.7 = assoc_entity element0, imports.%import_ref.6 [template]
+// CHECK:STDOUT:   %.9: %.4 = assoc_entity element0, imports.%import_ref.7 [symbolic]
 // CHECK:STDOUT:   %Add.type: type = facet_type <@Add> [template]
 // CHECK:STDOUT:   %Self.3: %Add.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.2: type = facet_type <@ImplicitAs, @ImplicitAs(%T)> [symbolic]
@@ -604,17 +604,17 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Convert.3: %Convert.type.3 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.10: type = facet_access_type %Self.5 [symbolic]
 // CHECK:STDOUT:   %.11: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.3 [symbolic]
-// CHECK:STDOUT:   %.12: %.11 = assoc_entity imports.%import_ref.23, element0 [symbolic]
+// CHECK:STDOUT:   %.12: %.11 = assoc_entity element0, imports.%import_ref.23 [symbolic]
 // CHECK:STDOUT:   %.13: type = facet_access_type %Self.4 [symbolic]
 // CHECK:STDOUT:   %Convert.type.4: type = fn_type @Convert.2, @ImplicitAs(%i32) [template]
 // CHECK:STDOUT:   %Convert.4: %Convert.type.4 = struct_value () [template]
 // CHECK:STDOUT:   %.14: type = assoc_entity_type %ImplicitAs.type.3, %Convert.type.4 [template]
-// CHECK:STDOUT:   %.15: %.14 = assoc_entity imports.%import_ref.24, element0 [template]
+// CHECK:STDOUT:   %.15: %.14 = assoc_entity element0, imports.%import_ref.24 [template]
 // CHECK:STDOUT:   %ImplicitAs.type.4: type = facet_type <@ImplicitAs, @ImplicitAs(Core.IntLiteral)> [template]
 // CHECK:STDOUT:   %Convert.type.5: type = fn_type @Convert.2, @ImplicitAs(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.5: %Convert.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.16: type = assoc_entity_type %ImplicitAs.type.4, %Convert.type.5 [template]
-// CHECK:STDOUT:   %.17: %.16 = assoc_entity imports.%import_ref.28, element0 [template]
+// CHECK:STDOUT:   %.17: %.16 = assoc_entity element0, imports.%import_ref.28 [template]
 // CHECK:STDOUT:   %Convert.type.6: type = fn_type @Convert.3 [template]
 // CHECK:STDOUT:   %Convert.6: %Convert.type.6 = struct_value () [template]
 // CHECK:STDOUT:   %.18: <witness> = interface_witness (%Convert.6) [template]
@@ -626,13 +626,13 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Op.type.1: type = fn_type @Op.1 [template]
 // CHECK:STDOUT:   %.24: type = facet_access_type %Self.3 [symbolic]
 // CHECK:STDOUT:   %.25: type = assoc_entity_type %Add.type, %Op.type.1 [template]
-// CHECK:STDOUT:   %.26: %.25 = assoc_entity imports.%import_ref.30, element0 [template]
+// CHECK:STDOUT:   %.26: %.25 = assoc_entity element0, imports.%import_ref.30 [template]
 // CHECK:STDOUT:   %Op.type.2: type = fn_type @Op.2 [template]
 // CHECK:STDOUT:   %Op.2: %Op.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.27: <witness> = interface_witness (%Op.2) [template]
 // CHECK:STDOUT:   %.28: <bound method> = bound_method %.20, %Op.2 [template]
 // CHECK:STDOUT:   %.29: %i32 = int_value 3 [template]
-// CHECK:STDOUT:   %.30: %.11 = assoc_entity imports.%import_ref.32, element0 [symbolic]
+// CHECK:STDOUT:   %.30: %.11 = assoc_entity element0, imports.%import_ref.32 [symbolic]
 // CHECK:STDOUT:   %Convert.type.7: type = fn_type @Convert.4 [template]
 // CHECK:STDOUT:   %Convert.7: %Convert.type.7 = struct_value () [template]
 // CHECK:STDOUT:   %.31: <witness> = interface_witness (%Convert.7) [template]
@@ -743,7 +743,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @As(%T) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.4)]
-// CHECK:STDOUT:   %.2: @As.%.1 (%.4) = assoc_entity imports.%import_ref.6, element0 [symbolic = %.2 (constants.%.5)]
+// CHECK:STDOUT:   %.2: @As.%.1 (%.4) = assoc_entity element0, imports.%import_ref.6 [symbolic = %.2 (constants.%.5)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -770,7 +770,7 @@ var arr: [i32; (1 as i32) + (2 as i32)] = (3, 4, (3 as i32) + (4 as i32));
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.2, @ImplicitAs(%T) [symbolic = %Convert.type (constants.%Convert.type.3)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.3) = struct_value () [symbolic = %Convert (constants.%Convert.3)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.3) [symbolic = %.1 (constants.%.11)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.11) = assoc_entity imports.%import_ref.23, element0 [symbolic = %.2 (constants.%.12)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.11) = assoc_entity element0, imports.%import_ref.23 [symbolic = %.2 (constants.%.12)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
diff --git a/toolchain/check/testdata/impl/compound.carbon b/toolchain/check/testdata/impl/compound.carbon
index e45fb85fe6b68..8363d6d15a9ac 100644
--- a/toolchain/check/testdata/impl/compound.carbon
+++ b/toolchain/check/testdata/impl/compound.carbon
@@ -43,12 +43,12 @@ fn InstanceCallIndirect(p: i32*) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Simple.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Simple.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Simple.%F.decl [template]
 // CHECK:STDOUT:   %.3: type = facet_access_type %Self [symbolic]
 // CHECK:STDOUT:   %G.type.1: type = fn_type @G.1 [template]
 // CHECK:STDOUT:   %G.1: %G.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %Simple.type, %G.type.1 [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity @Simple.%G.decl, element1 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element1, @Simple.%G.decl [template]
 // CHECK:STDOUT:   %.6: Core.IntLiteral = int_value 32 [template]
 // CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
 // CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
@@ -147,7 +147,7 @@ fn InstanceCallIndirect(p: i32*) {
 // CHECK:STDOUT: interface @Simple {
 // CHECK:STDOUT:   %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:   %G.decl: %G.type.1 = fn_decl @G.1 [template = constants.%G.1] {
 // CHECK:STDOUT:     %self.patt: @G.1.%.loc13_14.1 (%.3) = binding_pattern self
 // CHECK:STDOUT:     %self.param_patt: @G.1.%.loc13_14.1 (%.3) = value_param_pattern %self.patt, runtime_param0
@@ -158,7 +158,7 @@ fn InstanceCallIndirect(p: i32*) {
 // CHECK:STDOUT:     %self.param: @G.1.%.loc13_14.1 (%.3) = value_param runtime_param0
 // CHECK:STDOUT:     %self: @G.1.%.loc13_14.1 (%.3) = bind_name self, %self.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc13: %.4 = assoc_entity %G.decl, element1 [template = constants.%.5]
+// CHECK:STDOUT:   %.loc13: %.4 = assoc_entity element1, %G.decl [template = constants.%.5]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/extend_impl.carbon b/toolchain/check/testdata/impl/extend_impl.carbon
index 07f5e72bfea44..7b57ff749ac9c 100644
--- a/toolchain/check/testdata/impl/extend_impl.carbon
+++ b/toolchain/check/testdata/impl/extend_impl.carbon
@@ -32,7 +32,7 @@ fn G(c: C) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasF.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasF.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasF.%F.decl [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
@@ -74,7 +74,7 @@ fn G(c: C) {
 // CHECK:STDOUT: interface @HasF {
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/extend_impl_generic.carbon b/toolchain/check/testdata/impl/extend_impl_generic.carbon
index e046e8501fc91..be69e01c7eb10 100644
--- a/toolchain/check/testdata/impl/extend_impl_generic.carbon
+++ b/toolchain/check/testdata/impl/extend_impl_generic.carbon
@@ -59,7 +59,7 @@ class X(U:! type) {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1, @HasF(%T) [symbolic]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasF.type.2, %F.type.1 [symbolic]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasF.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasF.%F.decl [symbolic]
 // CHECK:STDOUT:   %Param: type = class_type @Param [template]
 // CHECK:STDOUT:   %.3: Core.IntLiteral = int_value 32 [template]
 // CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
@@ -73,7 +73,7 @@ class X(U:! type) {
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.1, @HasF(%Param) [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.7: type = assoc_entity_type %HasF.type.3, %F.type.2 [template]
-// CHECK:STDOUT:   %.8: %.7 = assoc_entity @HasF.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.8: %.7 = assoc_entity element0, @HasF.%F.decl [template]
 // CHECK:STDOUT:   %F.type.3: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.3: %F.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.9: %HasF.type.2 = facet_value %C, %C [symbolic]
@@ -141,7 +141,7 @@ class X(U:! type) {
 // CHECK:STDOUT:   %F.type: type = fn_type @F.1, @HasF(%T.loc4_16.2) [symbolic = %F.type (constants.%F.type.1)]
 // CHECK:STDOUT:   %F: @HasF.%F.type (%F.type.1) = struct_value () [symbolic = %F (constants.%F.1)]
 // CHECK:STDOUT:   %.loc5_14.2: type = assoc_entity_type @HasF.%HasF.type (%HasF.type.2), @HasF.%F.type (%F.type.1) [symbolic = %.loc5_14.2 (constants.%.1)]
-// CHECK:STDOUT:   %.loc5_14.3: @HasF.%.loc5_14.2 (%.1) = assoc_entity %F.decl, element0 [symbolic = %.loc5_14.3 (constants.%.2)]
+// CHECK:STDOUT:   %.loc5_14.3: @HasF.%.loc5_14.2 (%.1) = assoc_entity element0, %F.decl [symbolic = %.loc5_14.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @HasF.%HasF.type (%HasF.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.1)]
@@ -153,7 +153,7 @@ class X(U:! type) {
 // CHECK:STDOUT:       %return.param: ref @F.1.%T (%T) = out_param runtime_param0
 // CHECK:STDOUT:       %return: ref @F.1.%T (%T) = return_slot %return.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %.loc5_14.1: @HasF.%.loc5_14.2 (%.1) = assoc_entity %F.decl, element0 [symbolic = %.loc5_14.3 (constants.%.2)]
+// CHECK:STDOUT:     %.loc5_14.1: @HasF.%.loc5_14.2 (%.1) = assoc_entity element0, %F.decl [symbolic = %.loc5_14.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -310,7 +310,7 @@ class X(U:! type) {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1, @I(%T) [symbolic]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %I.type.2, %F.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @I.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @I.%F.decl [symbolic]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 0 [symbolic]
 // CHECK:STDOUT:   %U.patt: type = symbolic_binding_pattern U, 0 [symbolic]
 // CHECK:STDOUT:   %X.type: type = generic_class_type @X [template]
@@ -320,7 +320,7 @@ class X(U:! type) {
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.1, @I(%U) [symbolic]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %I.type.3, %F.type.2 [symbolic]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity @I.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, @I.%F.decl [symbolic]
 // CHECK:STDOUT:   %F.type.3: type = fn_type @F.2, @impl(%U) [symbolic]
 // CHECK:STDOUT:   %F.3: %F.type.3 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.6: %I.type.2 = facet_value %X.2, %X.2 [symbolic]
@@ -369,7 +369,7 @@ class X(U:! type) {
 // CHECK:STDOUT:   %F.type: type = fn_type @F.1, @I(%T.loc4_13.2) [symbolic = %F.type (constants.%F.type.1)]
 // CHECK:STDOUT:   %F: @I.%F.type (%F.type.1) = struct_value () [symbolic = %F (constants.%F.1)]
 // CHECK:STDOUT:   %.loc5_25.2: type = assoc_entity_type @I.%I.type (%I.type.2), @I.%F.type (%F.type.1) [symbolic = %.loc5_25.2 (constants.%.2)]
-// CHECK:STDOUT:   %.loc5_25.3: @I.%.loc5_25.2 (%.2) = assoc_entity %F.decl, element0 [symbolic = %.loc5_25.3 (constants.%.3)]
+// CHECK:STDOUT:   %.loc5_25.3: @I.%.loc5_25.2 (%.2) = assoc_entity element0, %F.decl [symbolic = %.loc5_25.3 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
@@ -389,7 +389,7 @@ class X(U:! type) {
 // CHECK:STDOUT:       %t.param: @F.1.%T (%T) = value_param runtime_param1
 // CHECK:STDOUT:       %t: @F.1.%T (%T) = bind_name t, %t.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %.loc5_25.1: @I.%.loc5_25.2 (%.2) = assoc_entity %F.decl, element0 [symbolic = %.loc5_25.3 (constants.%.3)]
+// CHECK:STDOUT:     %.loc5_25.1: @I.%.loc5_25.2 (%.2) = assoc_entity element0, %F.decl [symbolic = %.loc5_25.3 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
diff --git a/toolchain/check/testdata/impl/fail_call_invalid.carbon b/toolchain/check/testdata/impl/fail_call_invalid.carbon
index ef02d90979190..2b528ab5302fe 100644
--- a/toolchain/check/testdata/impl/fail_call_invalid.carbon
+++ b/toolchain/check/testdata/impl/fail_call_invalid.carbon
@@ -32,7 +32,7 @@ fn InstanceCall(n: i32) {
 // CHECK:STDOUT:   %G.type.1: type = fn_type @G.1 [template]
 // CHECK:STDOUT:   %G.1: %G.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %Simple.type, %G.type.1 [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @Simple.%G.decl, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @Simple.%G.decl [template]
 // CHECK:STDOUT:   %.4: Core.IntLiteral = int_value 32 [template]
 // CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
 // CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
@@ -92,7 +92,7 @@ fn InstanceCall(n: i32) {
 // CHECK:STDOUT:     %self.param: @G.1.%.loc12_14.1 (%.1) = value_param runtime_param0
 // CHECK:STDOUT:     %self: @G.1.%.loc12_14.1 (%.1) = bind_name self, %self.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc12: %.2 = assoc_entity %G.decl, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc12: %.2 = assoc_entity element0, %G.decl [template = constants.%.3]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/fail_extend_impl_forall.carbon b/toolchain/check/testdata/impl/fail_extend_impl_forall.carbon
index 712199c5f4dc8..d6f3c3fa4e313 100644
--- a/toolchain/check/testdata/impl/fail_extend_impl_forall.carbon
+++ b/toolchain/check/testdata/impl/fail_extend_impl_forall.carbon
@@ -33,7 +33,7 @@ class C {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1, @GenericInterface(%T) [symbolic]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %GenericInterface.type.2, %F.type.1 [symbolic]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @GenericInterface.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @GenericInterface.%F.decl [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2, @impl(%T) [symbolic]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [symbolic]
@@ -77,7 +77,7 @@ class C {
 // CHECK:STDOUT:   %F.type: type = fn_type @F.1, @GenericInterface(%T.loc11_28.2) [symbolic = %F.type (constants.%F.type.1)]
 // CHECK:STDOUT:   %F: @GenericInterface.%F.type (%F.type.1) = struct_value () [symbolic = %F (constants.%F.1)]
 // CHECK:STDOUT:   %.loc12_13.2: type = assoc_entity_type @GenericInterface.%GenericInterface.type (%GenericInterface.type.2), @GenericInterface.%F.type (%F.type.1) [symbolic = %.loc12_13.2 (constants.%.1)]
-// CHECK:STDOUT:   %.loc12_13.3: @GenericInterface.%.loc12_13.2 (%.1) = assoc_entity %F.decl, element0 [symbolic = %.loc12_13.3 (constants.%.2)]
+// CHECK:STDOUT:   %.loc12_13.3: @GenericInterface.%.loc12_13.2 (%.1) = assoc_entity element0, %F.decl [symbolic = %.loc12_13.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @GenericInterface.%GenericInterface.type (%GenericInterface.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
@@ -89,7 +89,7 @@ class C {
 // CHECK:STDOUT:       %x.param: @F.1.%T (%T) = value_param runtime_param0
 // CHECK:STDOUT:       %x: @F.1.%T (%T) = bind_name x, %x.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %.loc12_13.1: @GenericInterface.%.loc12_13.2 (%.1) = assoc_entity %F.decl, element0 [symbolic = %.loc12_13.3 (constants.%.2)]
+// CHECK:STDOUT:     %.loc12_13.1: @GenericInterface.%.loc12_13.2 (%.1) = assoc_entity element0, %F.decl [symbolic = %.loc12_13.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
diff --git a/toolchain/check/testdata/impl/fail_impl_as_scope.carbon b/toolchain/check/testdata/impl/fail_impl_as_scope.carbon
index 3a08d8d849b04..ce64d658823af 100644
--- a/toolchain/check/testdata/impl/fail_impl_as_scope.carbon
+++ b/toolchain/check/testdata/impl/fail_impl_as_scope.carbon
@@ -27,7 +27,7 @@ impl as Simple {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Simple.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Simple.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Simple.%F.decl [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.3: <witness> = interface_witness (%F.2) [template]
@@ -56,7 +56,7 @@ impl as Simple {
 // CHECK:STDOUT: interface @Simple {
 // CHECK:STDOUT:   %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/fail_impl_bad_assoc_const.carbon b/toolchain/check/testdata/impl/fail_impl_bad_assoc_const.carbon
index 381ba2fb582f2..fe39c10513035 100644
--- a/toolchain/check/testdata/impl/fail_impl_bad_assoc_const.carbon
+++ b/toolchain/check/testdata/impl/fail_impl_bad_assoc_const.carbon
@@ -21,7 +21,7 @@ impl bool as I {}
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [template]
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type, type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%T, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%T [template]
 // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [template]
 // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [template]
 // CHECK:STDOUT: }
@@ -52,7 +52,7 @@ impl bool as I {}
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %T: type = assoc_const_decl T [template]
-// CHECK:STDOUT:   %.loc11: %.1 = assoc_entity %T, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc11: %.1 = assoc_entity element0, %T [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/fail_impl_bad_assoc_fn.carbon b/toolchain/check/testdata/impl/fail_impl_bad_assoc_fn.carbon
index 5f01cded6c990..60289bc373ed7 100644
--- a/toolchain/check/testdata/impl/fail_impl_bad_assoc_fn.carbon
+++ b/toolchain/check/testdata/impl/fail_impl_bad_assoc_fn.carbon
@@ -221,7 +221,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %NoF: type = class_type @NoF [template]
 // CHECK:STDOUT:   %.3: type = struct_type {} [template]
 // CHECK:STDOUT:   %.4: <witness> = complete_type_witness %.3 [template]
@@ -249,7 +249,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:   %F.type.5: type = fn_type @F.5 [template]
 // CHECK:STDOUT:   %F.6: %F.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %J.type, %F.type.5 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity @J.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, @J.%F.decl [template]
 // CHECK:STDOUT:   %FMissingParam: type = class_type @FMissingParam [template]
 // CHECK:STDOUT:   %F.type.6: type = fn_type @F.6 [template]
 // CHECK:STDOUT:   %F.7: %F.type.6 = struct_value () [template]
@@ -294,7 +294,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:   %F.type.13: type = fn_type @F.13 [template]
 // CHECK:STDOUT:   %F.14: %F.type.13 = struct_value () [template]
 // CHECK:STDOUT:   %.23: type = assoc_entity_type %SelfNested.type, %F.type.13 [template]
-// CHECK:STDOUT:   %.24: %.23 = assoc_entity @SelfNested.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.24: %.23 = assoc_entity element0, @SelfNested.%F.decl [template]
 // CHECK:STDOUT:   %SelfNestedBadParam: type = class_type @SelfNestedBadParam [template]
 // CHECK:STDOUT:   %.25: type = ptr_type %SelfNestedBadParam [template]
 // CHECK:STDOUT:   %.26: type = struct_type {.x: %i32, .y: %i32} [template]
@@ -372,7 +372,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc11: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc11: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -406,7 +406,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %return.param: ref bool = out_param runtime_param2
 // CHECK:STDOUT:     %return: ref bool = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc93: %.8 = assoc_entity %F.decl, element0 [template = constants.%.9]
+// CHECK:STDOUT:   %.loc93: %.8 = assoc_entity element0, %F.decl [template = constants.%.9]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -446,7 +446,7 @@ class SelfNestedBadReturnType {
 // CHECK:STDOUT:     %return.param: ref @F.13.%.loc188_52.1 (%.22) = out_param runtime_param1
 // CHECK:STDOUT:     %return: ref @F.13.%.loc188_52.1 (%.22) = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc188: %.23 = assoc_entity %F.decl, element0 [template = constants.%.24]
+// CHECK:STDOUT:   %.loc188: %.23 = assoc_entity element0, %F.decl [template = constants.%.24]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/fail_self_type_mismatch.carbon b/toolchain/check/testdata/impl/fail_self_type_mismatch.carbon
index af5a382a64b3a..8cfa57d80086d 100644
--- a/toolchain/check/testdata/impl/fail_self_type_mismatch.carbon
+++ b/toolchain/check/testdata/impl/fail_self_type_mismatch.carbon
@@ -42,7 +42,7 @@ impl i32 as I {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %I.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %.5: Core.IntLiteral = int_value 32 [template]
 // CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
 // CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
@@ -103,7 +103,7 @@ impl i32 as I {
 // CHECK:STDOUT:     %c.param: @F.1.%C.loc14_12.1 (%C.3) = value_param runtime_param0
 // CHECK:STDOUT:     %c: @F.1.%C.loc14_12.1 (%C.3) = bind_name c, %c.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc14: %.3 = assoc_entity %F.decl, element0 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc14: %.3 = assoc_entity element0, %F.decl [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/fail_todo_impl_assoc_const.carbon b/toolchain/check/testdata/impl/fail_todo_impl_assoc_const.carbon
index 8d6a01bd2978c..a48499d37ef30 100644
--- a/toolchain/check/testdata/impl/fail_todo_impl_assoc_const.carbon
+++ b/toolchain/check/testdata/impl/fail_todo_impl_assoc_const.carbon
@@ -21,7 +21,7 @@ impl bool as I where .T = bool {}
 // CHECK:STDOUT:   %I.type.1: type = facet_type <@I> [template]
 // CHECK:STDOUT:   %Self: %I.type.1 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type.1, type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%T, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%T [template]
 // CHECK:STDOUT:   %Bool.type: type = fn_type @Bool [template]
 // CHECK:STDOUT:   %Bool: %Bool.type = struct_value () [template]
 // CHECK:STDOUT:   %.Self: %I.type.1 = bind_symbolic_name .Self, 0 [symbolic]
@@ -67,7 +67,7 @@ impl bool as I where .T = bool {}
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type.1 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %T: type = assoc_const_decl T [template]
-// CHECK:STDOUT:   %.loc11: %.1 = assoc_entity %T, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc11: %.1 = assoc_entity element0, %T [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/impl_as.carbon b/toolchain/check/testdata/impl/impl_as.carbon
index 145608960f38e..3055680f08fa7 100644
--- a/toolchain/check/testdata/impl/impl_as.carbon
+++ b/toolchain/check/testdata/impl/impl_as.carbon
@@ -29,7 +29,7 @@ class C {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Simple.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Simple.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Simple.%F.decl [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
@@ -61,7 +61,7 @@ class C {
 // CHECK:STDOUT: interface @Simple {
 // CHECK:STDOUT:   %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/impl_forall.carbon b/toolchain/check/testdata/impl/impl_forall.carbon
index ffd6cd794d458..7db8e3e446d8c 100644
--- a/toolchain/check/testdata/impl/impl_forall.carbon
+++ b/toolchain/check/testdata/impl/impl_forall.carbon
@@ -24,7 +24,7 @@ impl forall [T:! type] T as Simple {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Simple.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Simple.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Simple.%F.decl [template]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2, @impl(%T) [symbolic]
@@ -61,7 +61,7 @@ impl forall [T:! type] T as Simple {
 // CHECK:STDOUT: interface @Simple {
 // CHECK:STDOUT:   %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/lookup/alias.carbon b/toolchain/check/testdata/impl/lookup/alias.carbon
index 996a48f75ec24..3d4491aae5160 100644
--- a/toolchain/check/testdata/impl/lookup/alias.carbon
+++ b/toolchain/check/testdata/impl/lookup/alias.carbon
@@ -34,7 +34,7 @@ fn G(c: C) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasF.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasF.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasF.%F.decl [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %.3: type = struct_type {} [template]
 // CHECK:STDOUT:   %.4: <witness> = complete_type_witness %.3 [template]
@@ -80,7 +80,7 @@ fn G(c: C) {
 // CHECK:STDOUT: interface @HasF {
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/lookup/fail_alias_impl_not_found.carbon b/toolchain/check/testdata/impl/lookup/fail_alias_impl_not_found.carbon
index 9af51ca8828b0..fb25ae355a1aa 100644
--- a/toolchain/check/testdata/impl/lookup/fail_alias_impl_not_found.carbon
+++ b/toolchain/check/testdata/impl/lookup/fail_alias_impl_not_found.carbon
@@ -36,7 +36,7 @@ fn F(c: C) {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %.3: type = struct_type {} [template]
 // CHECK:STDOUT:   %.4: <witness> = complete_type_witness %.3 [template]
@@ -74,7 +74,7 @@ fn F(c: C) {
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon b/toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon
index 75496c5840f86..cfafb5193b1b3 100644
--- a/toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon
+++ b/toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon
@@ -36,7 +36,7 @@ impl C as I {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %.3: type = struct_type {} [template]
 // CHECK:STDOUT:   %.4: <witness> = complete_type_witness %.3 [template]
@@ -90,7 +90,7 @@ impl C as I {
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/lookup/generic.carbon b/toolchain/check/testdata/impl/lookup/generic.carbon
index b6f4b2f8697c2..d3ba4b6927360 100644
--- a/toolchain/check/testdata/impl/lookup/generic.carbon
+++ b/toolchain/check/testdata/impl/lookup/generic.carbon
@@ -130,7 +130,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasF.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasF.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasF.%F.decl [template]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2, @impl(%T) [symbolic]
@@ -184,7 +184,7 @@ fn G(x: A) {
 // CHECK:STDOUT: interface @HasF {
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -280,7 +280,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %HasF.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @HasF.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @HasF.%F.decl [template]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2, @impl(%T) [symbolic]
@@ -356,7 +356,7 @@ fn G(x: A) {
 // CHECK:STDOUT:     %return.param: ref @F.1.%.loc5_14.1 (%.1) = out_param runtime_param1
 // CHECK:STDOUT:     %return: ref @F.1.%.loc5_14.1 (%.1) = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc5: %.2 = assoc_entity %F.decl, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc5: %.2 = assoc_entity element0, %F.decl [template = constants.%.3]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -484,7 +484,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasF.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasF.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasF.%F.decl [template]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
 // CHECK:STDOUT:   %C.type: type = generic_class_type @C [template]
@@ -555,7 +555,7 @@ fn G(x: A) {
 // CHECK:STDOUT: interface @HasF {
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -691,7 +691,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1, @HasF(%T) [symbolic]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasF.type.2, %F.type.1 [symbolic]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasF.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasF.%F.decl [symbolic]
 // CHECK:STDOUT:   %.3: type = struct_type {} [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2, @impl(%T) [symbolic]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [symbolic]
@@ -703,7 +703,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %F.type.3: type = fn_type @F.1, @HasF(%.3) [template]
 // CHECK:STDOUT:   %F.3: %F.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.6: type = assoc_entity_type %HasF.type.3, %F.type.3 [template]
-// CHECK:STDOUT:   %.7: %.6 = assoc_entity @HasF.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.7: %.6 = assoc_entity element0, @HasF.%F.decl [template]
 // CHECK:STDOUT:   %F.type.4: type = fn_type @F.2, @impl(%.3) [template]
 // CHECK:STDOUT:   %F.4: %F.type.4 = struct_value () [template]
 // CHECK:STDOUT:   %.8: <witness> = interface_witness (%F.4) [template]
@@ -764,12 +764,12 @@ fn G(x: A) {
 // CHECK:STDOUT:   %F.type: type = fn_type @F.1, @HasF(%T.loc4_16.2) [symbolic = %F.type (constants.%F.type.1)]
 // CHECK:STDOUT:   %F: @HasF.%F.type (%F.type.1) = struct_value () [symbolic = %F (constants.%F.1)]
 // CHECK:STDOUT:   %.loc5_9.2: type = assoc_entity_type @HasF.%HasF.type (%HasF.type.2), @HasF.%F.type (%F.type.1) [symbolic = %.loc5_9.2 (constants.%.1)]
-// CHECK:STDOUT:   %.loc5_9.3: @HasF.%.loc5_9.2 (%.1) = assoc_entity %F.decl, element0 [symbolic = %.loc5_9.3 (constants.%.2)]
+// CHECK:STDOUT:   %.loc5_9.3: @HasF.%.loc5_9.2 (%.1) = assoc_entity element0, %F.decl [symbolic = %.loc5_9.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @HasF.%HasF.type (%HasF.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:     %F.decl: @HasF.%F.type (%F.type.1) = fn_decl @F.1 [symbolic = @HasF.%F (constants.%F.1)] {} {}
-// CHECK:STDOUT:     %.loc5_9.1: @HasF.%.loc5_9.2 (%.1) = assoc_entity %F.decl, element0 [symbolic = %.loc5_9.3 (constants.%.2)]
+// CHECK:STDOUT:     %.loc5_9.1: @HasF.%.loc5_9.2 (%.1) = assoc_entity element0, %F.decl [symbolic = %.loc5_9.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -909,7 +909,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasF.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasF.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasF.%F.decl [template]
 // CHECK:STDOUT:   %T: type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %T.patt: type = symbolic_binding_pattern T, 0 [symbolic]
 // CHECK:STDOUT:   %U: type = bind_symbolic_name U, 1 [symbolic]
@@ -965,7 +965,7 @@ fn G(x: A) {
 // CHECK:STDOUT: interface @HasF {
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -1053,7 +1053,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1, @HasF(%T) [symbolic]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasF.type.2, %F.type.1 [symbolic]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasF.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasF.%F.decl [symbolic]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2, @impl(%T) [symbolic]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.3: %HasF.type.2 = facet_value %T, %T [symbolic]
@@ -1068,7 +1068,7 @@ fn G(x: A) {
 // CHECK:STDOUT:   %F.type.3: type = fn_type @F.1, @HasF(%B) [template]
 // CHECK:STDOUT:   %F.3: %F.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %HasF.type.3, %F.type.3 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity @HasF.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, @HasF.%F.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1127,12 +1127,12 @@ fn G(x: A) {
 // CHECK:STDOUT:   %F.type: type = fn_type @F.1, @HasF(%T.loc4_16.2) [symbolic = %F.type (constants.%F.type.1)]
 // CHECK:STDOUT:   %F: @HasF.%F.type (%F.type.1) = struct_value () [symbolic = %F (constants.%F.1)]
 // CHECK:STDOUT:   %.loc5_9.2: type = assoc_entity_type @HasF.%HasF.type (%HasF.type.2), @HasF.%F.type (%F.type.1) [symbolic = %.loc5_9.2 (constants.%.1)]
-// CHECK:STDOUT:   %.loc5_9.3: @HasF.%.loc5_9.2 (%.1) = assoc_entity %F.decl, element0 [symbolic = %.loc5_9.3 (constants.%.2)]
+// CHECK:STDOUT:   %.loc5_9.3: @HasF.%.loc5_9.2 (%.1) = assoc_entity element0, %F.decl [symbolic = %.loc5_9.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @HasF.%HasF.type (%HasF.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:     %F.decl: @HasF.%F.type (%F.type.1) = fn_decl @F.1 [symbolic = @HasF.%F (constants.%F.1)] {} {}
-// CHECK:STDOUT:     %.loc5_9.1: @HasF.%.loc5_9.2 (%.1) = assoc_entity %F.decl, element0 [symbolic = %.loc5_9.3 (constants.%.2)]
+// CHECK:STDOUT:     %.loc5_9.1: @HasF.%.loc5_9.2 (%.1) = assoc_entity element0, %F.decl [symbolic = %.loc5_9.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
diff --git a/toolchain/check/testdata/impl/lookup/instance_method.carbon b/toolchain/check/testdata/impl/lookup/instance_method.carbon
index 3a469dccf34b9..b39f4d2deec72 100644
--- a/toolchain/check/testdata/impl/lookup/instance_method.carbon
+++ b/toolchain/check/testdata/impl/lookup/instance_method.carbon
@@ -38,7 +38,7 @@ fn F(c: C) -> i32 {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %I.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.5: %I.type = facet_value %C, %C [template]
@@ -106,7 +106,7 @@ fn F(c: C) -> i32 {
 // CHECK:STDOUT:     %return.param: ref %i32 = out_param runtime_param1
 // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc14: %.3 = assoc_entity %F.decl, element0 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc14: %.3 = assoc_entity element0, %F.decl [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/lookup/no_prelude/impl_forall.carbon b/toolchain/check/testdata/impl/lookup/no_prelude/impl_forall.carbon
index 82dccec4a4464..966ddab86ceeb 100644
--- a/toolchain/check/testdata/impl/lookup/no_prelude/impl_forall.carbon
+++ b/toolchain/check/testdata/impl/lookup/no_prelude/impl_forall.carbon
@@ -53,7 +53,7 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1, @I(%U) [symbolic]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %I.type.2, %F.type.1 [symbolic]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity @I.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, @I.%F.decl [symbolic]
 // CHECK:STDOUT:   %V: type = bind_symbolic_name V, 0 [symbolic]
 // CHECK:STDOUT:   %V.patt: type = symbolic_binding_pattern V, 0 [symbolic]
 // CHECK:STDOUT:   %A.3: type = class_type @A, @A(%V) [symbolic]
@@ -63,7 +63,7 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %F.type.3: type = fn_type @F.1, @I(%V) [symbolic]
 // CHECK:STDOUT:   %F.3: %F.type.3 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.7: type = assoc_entity_type %I.type.3, %F.type.3 [symbolic]
-// CHECK:STDOUT:   %.8: %.7 = assoc_entity @I.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.8: %.7 = assoc_entity element0, @I.%F.decl [symbolic]
 // CHECK:STDOUT:   %.9: %I.type.2 = facet_value %A.3, %A.3 [symbolic]
 // CHECK:STDOUT:   %.10: <witness> = interface_witness (%F.2) [symbolic]
 // CHECK:STDOUT:   %.11: type = unbound_element_type %A.3, %V [symbolic]
@@ -81,7 +81,7 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %F.type.4: type = fn_type @F.1, @I(%W) [symbolic]
 // CHECK:STDOUT:   %F.4: %F.type.4 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.19: type = assoc_entity_type %I.type.4, %F.type.4 [symbolic]
-// CHECK:STDOUT:   %.20: %.19 = assoc_entity @I.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.20: %.19 = assoc_entity element0, @I.%F.decl [symbolic]
 // CHECK:STDOUT:   %F.type.5: type = fn_type @F.2, @impl(%W) [symbolic]
 // CHECK:STDOUT:   %F.5: %F.type.5 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.21: <witness> = interface_witness (%F.5) [symbolic]
@@ -96,7 +96,7 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %F.type.6: type = fn_type @F.1, @I(%.22) [template]
 // CHECK:STDOUT:   %F.6: %F.type.6 = struct_value () [template]
 // CHECK:STDOUT:   %.28: type = assoc_entity_type %I.type.5, %F.type.6 [template]
-// CHECK:STDOUT:   %.29: %.28 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.29: %.28 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %F.type.7: type = fn_type @F.2, @impl(%.22) [template]
 // CHECK:STDOUT:   %F.7: %F.type.7 = struct_value () [template]
 // CHECK:STDOUT:   %.30: <witness> = interface_witness (%F.7) [template]
@@ -185,7 +185,7 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %F.type: type = fn_type @F.1, @I(%U.loc6_13.2) [symbolic = %F.type (constants.%F.type.1)]
 // CHECK:STDOUT:   %F: @I.%F.type (%F.type.1) = struct_value () [symbolic = %F (constants.%F.1)]
 // CHECK:STDOUT:   %.loc7_26.2: type = assoc_entity_type @I.%I.type (%I.type.2), @I.%F.type (%F.type.1) [symbolic = %.loc7_26.2 (constants.%.5)]
-// CHECK:STDOUT:   %.loc7_26.3: @I.%.loc7_26.2 (%.5) = assoc_entity %F.decl, element0 [symbolic = %.loc7_26.3 (constants.%.6)]
+// CHECK:STDOUT:   %.loc7_26.3: @I.%.loc7_26.2 (%.5) = assoc_entity element0, %F.decl [symbolic = %.loc7_26.3 (constants.%.6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
@@ -205,7 +205,7 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:       %return.param: ref @F.1.%U (%U) = out_param runtime_param1
 // CHECK:STDOUT:       %return: ref @F.1.%U (%U) = return_slot %return.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %.loc7_26.1: @I.%.loc7_26.2 (%.5) = assoc_entity %F.decl, element0 [symbolic = %.loc7_26.3 (constants.%.6)]
+// CHECK:STDOUT:     %.loc7_26.1: @I.%.loc7_26.2 (%.5) = assoc_entity element0, %F.decl [symbolic = %.loc7_26.3 (constants.%.6)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -304,7 +304,7 @@ fn TestSpecific(a: A({})) -> {} {
 // CHECK:STDOUT:   %I.type.loc17_14.2: type = facet_type <@I, @I(%W.loc16_16.2)> [symbolic = %I.type.loc17_14.2 (constants.%I.type.4)]
 // CHECK:STDOUT:   %F.type.loc17_17: type = fn_type @F.1, @I(%W.loc16_16.2) [symbolic = %F.type.loc17_17 (constants.%F.type.4)]
 // CHECK:STDOUT:   %.loc17_17.2: type = assoc_entity_type @TestGeneric.%I.type.loc17_14.2 (%I.type.4), @TestGeneric.%F.type.loc17_17 (%F.type.4) [symbolic = %.loc17_17.2 (constants.%.19)]
-// CHECK:STDOUT:   %.loc17_17.3: @TestGeneric.%.loc17_17.2 (%.19) = assoc_entity @I.%F.decl, element0 [symbolic = %.loc17_17.3 (constants.%.20)]
+// CHECK:STDOUT:   %.loc17_17.3: @TestGeneric.%.loc17_17.2 (%.19) = assoc_entity element0, @I.%F.decl [symbolic = %.loc17_17.3 (constants.%.20)]
 // CHECK:STDOUT:   %F.type.loc17_11: type = fn_type @F.2, @impl(%W.loc16_16.2) [symbolic = %F.type.loc17_11 (constants.%F.type.5)]
 // CHECK:STDOUT:   %F: @TestGeneric.%F.type.loc17_11 (%F.type.5) = struct_value () [symbolic = %F (constants.%F.5)]
 // CHECK:STDOUT:
diff --git a/toolchain/check/testdata/impl/lookup/no_prelude/import.carbon b/toolchain/check/testdata/impl/lookup/no_prelude/import.carbon
index c6e73131e5ff2..7e6b1505a6816 100644
--- a/toolchain/check/testdata/impl/lookup/no_prelude/import.carbon
+++ b/toolchain/check/testdata/impl/lookup/no_prelude/import.carbon
@@ -201,7 +201,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasF.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasF.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasF.%F.decl [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %.3: type = struct_type {} [template]
 // CHECK:STDOUT:   %.4: <witness> = complete_type_witness %.3 [template]
@@ -227,7 +227,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: interface @HasF {
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -274,7 +274,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %G.type.1: type = fn_type @G.1 [template]
 // CHECK:STDOUT:   %G.1: %G.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasG.type, %G.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasG.%G.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasG.%G.decl [template]
 // CHECK:STDOUT:   %D: type = class_type @D [template]
 // CHECK:STDOUT:   %.3: type = struct_type {} [template]
 // CHECK:STDOUT:   %.4: <witness> = complete_type_witness %.3 [template]
@@ -340,7 +340,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: interface @HasG {
 // CHECK:STDOUT:   %Self: %HasG.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1]
 // CHECK:STDOUT:   %G.decl: %G.type.1 = fn_decl @G.1 [template = constants.%G.1] {} {}
-// CHECK:STDOUT:   %.loc7: %.1 = assoc_entity %G.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc7: %.1 = assoc_entity element0, %G.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -444,7 +444,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %HasF.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity imports.%import_ref.8, element0 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, imports.%import_ref.8 [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.6: <witness> = interface_witness (%F.2) [template]
@@ -536,7 +536,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %Self.1: %HasF.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %HasF.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity imports.%import_ref.8, element0 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, imports.%import_ref.8 [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %HasG.type: type = facet_type <@HasG> [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
@@ -677,7 +677,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %Self.1: %HasG.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %G.type.1: type = fn_type @G.1 [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %HasG.type, %G.type.1 [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity imports.%import_ref.8, element0 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, imports.%import_ref.8 [template]
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [template]
 // CHECK:STDOUT:   %D: type = class_type @D [template]
 // CHECK:STDOUT:   %G.type.2: type = fn_type @G.2 [template]
@@ -818,7 +818,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %Self.1: %HasG.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %G.type.1: type = fn_type @G.1 [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %HasG.type, %G.type.1 [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity imports.%import_ref.8, element0 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, imports.%import_ref.8 [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %HasF.type: type = facet_type <@HasF> [template]
 // CHECK:STDOUT:   %G.type.2: type = fn_type @G.2 [template]
@@ -942,7 +942,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [template]
 // CHECK:STDOUT:   %H.1: %H.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Z.type, %H.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Z.%H.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Z.%H.decl [template]
 // CHECK:STDOUT:   %H.type.2: type = fn_type @H.2 [template]
 // CHECK:STDOUT:   %H.2: %H.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.3: %Z.type = facet_value %empty_tuple.type, %empty_tuple.type [template]
@@ -964,7 +964,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: interface @Z {
 // CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %H.decl: %H.type.1 = fn_decl @H.1 [template = constants.%H.1] {} {}
-// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity %H.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity element0, %H.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -1005,7 +1005,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %Self: %Z.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %H.type.1: type = fn_type @H.1 [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Z.type, %H.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity imports.%import_ref.5, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, imports.%import_ref.5 [template]
 // CHECK:STDOUT:   %H.type.2: type = fn_type @H.2 [template]
 // CHECK:STDOUT:   %H.2: %H.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.3: <witness> = interface_witness (%H.2) [template]
@@ -1083,7 +1083,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %K.type: type = fn_type @K [template]
 // CHECK:STDOUT:   %K: %K.type = struct_value () [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %Y.type, %K.type [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @Y.%K.decl, element0 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, @Y.%K.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -1109,7 +1109,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: interface @Y {
 // CHECK:STDOUT:   %Self: %Y.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %K.decl: %K.type = fn_decl @K [template = constants.%K] {} {}
-// CHECK:STDOUT:   %.loc7: %.3 = assoc_entity %K.decl, element0 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc7: %.3 = assoc_entity element0, %K.decl [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -1184,7 +1184,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %L: %L.type = struct_value () [template]
 // CHECK:STDOUT:   %struct: %AnyParam.3 = struct_value () [template]
 // CHECK:STDOUT:   %.6: type = assoc_entity_type %Y.type, %K.type.2 [template]
-// CHECK:STDOUT:   %.7: %.6 = assoc_entity imports.%import_ref.8, element0 [template]
+// CHECK:STDOUT:   %.7: %.6 = assoc_entity element0, imports.%import_ref.8 [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1370,7 +1370,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %Self.3: %Y.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %K.type: type = fn_type @K [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %Y.type, %K.type [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity imports.%import_ref.10, element0 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, imports.%import_ref.10 [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1534,7 +1534,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %I.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %tuple.type.1: type = tuple_type (type, type, type, type, type, type, type, type) [template]
 // CHECK:STDOUT:   %tuple.type.2: type = tuple_type (%Extra1.type, %Extra2.type, %Extra3.type, %Extra4.type, %Extra5.type, %Extra6.type, %Extra7.type, %Extra8.type) [template]
 // CHECK:STDOUT:   %C.3: type = class_type @C, @C(%tuple.type.2) [template]
@@ -1657,7 +1657,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.9]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc14: %.3 = assoc_entity %F.decl, element0 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc14: %.3 = assoc_entity element0, %F.decl [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -1729,7 +1729,7 @@ fn Test(c: HasExtraInterfaces.C(type)) {
 // CHECK:STDOUT:   %Self.1: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %I.type, %F.type [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity imports.%import_ref.8, element0 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, imports.%import_ref.8 [template]
 // CHECK:STDOUT:   %Extra8.type: type = facet_type <@Extra8> [template]
 // CHECK:STDOUT:   %Extra7.type: type = facet_type <@Extra7> [template]
 // CHECK:STDOUT:   %Extra6.type: type = facet_type <@Extra6> [template]
diff --git a/toolchain/check/testdata/impl/multiple_extend.carbon b/toolchain/check/testdata/impl/multiple_extend.carbon
index 818c61bce3377..0fd4398a0a8a0 100644
--- a/toolchain/check/testdata/impl/multiple_extend.carbon
+++ b/toolchain/check/testdata/impl/multiple_extend.carbon
@@ -168,13 +168,13 @@ fn P(o: O) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasF.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasF.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasF.%F.decl [template]
 // CHECK:STDOUT:   %HasG.type: type = facet_type <@HasG> [template]
 // CHECK:STDOUT:   %Self.2: %HasG.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %G.type.1: type = fn_type @G.1 [template]
 // CHECK:STDOUT:   %G.1: %G.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %HasG.type, %G.type.1 [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @HasG.%G.decl, element0 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, @HasG.%G.decl [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
@@ -222,7 +222,7 @@ fn P(o: O) {
 // CHECK:STDOUT: interface @HasF {
 // CHECK:STDOUT:   %Self: %HasF.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -233,7 +233,7 @@ fn P(o: O) {
 // CHECK:STDOUT: interface @HasG {
 // CHECK:STDOUT:   %Self: %HasG.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.2]
 // CHECK:STDOUT:   %G.decl: %G.type.1 = fn_decl @G.1 [template = constants.%G.1] {} {}
-// CHECK:STDOUT:   %.loc9: %.3 = assoc_entity %G.decl, element0 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc9: %.3 = assoc_entity element0, %G.decl [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -334,13 +334,13 @@ fn P(o: O) {
 // CHECK:STDOUT:   %A.type.1: type = fn_type @A.1 [template]
 // CHECK:STDOUT:   %A.1: %A.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasA1.type, %A.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasA1.%A.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasA1.%A.decl [template]
 // CHECK:STDOUT:   %HasA2.type: type = facet_type <@HasA2> [template]
 // CHECK:STDOUT:   %Self.2: %HasA2.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %A.type.2: type = fn_type @A.2 [template]
 // CHECK:STDOUT:   %A.2: %A.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %HasA2.type, %A.type.2 [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @HasA2.%A.decl, element0 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, @HasA2.%A.decl [template]
 // CHECK:STDOUT:   %D: type = class_type @D [template]
 // CHECK:STDOUT:   %A.type.3: type = fn_type @A.3 [template]
 // CHECK:STDOUT:   %A.3: %A.type.3 = struct_value () [template]
@@ -388,7 +388,7 @@ fn P(o: O) {
 // CHECK:STDOUT: interface @HasA1 {
 // CHECK:STDOUT:   %Self: %HasA1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1]
 // CHECK:STDOUT:   %A.decl: %A.type.1 = fn_decl @A.1 [template = constants.%A.1] {} {}
-// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity %A.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity element0, %A.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -399,7 +399,7 @@ fn P(o: O) {
 // CHECK:STDOUT: interface @HasA2 {
 // CHECK:STDOUT:   %Self: %HasA2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.2]
 // CHECK:STDOUT:   %A.decl: %A.type.2 = fn_decl @A.2 [template = constants.%A.2] {} {}
-// CHECK:STDOUT:   %.loc9: %.3 = assoc_entity %A.decl, element0 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc9: %.3 = assoc_entity element0, %A.decl [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -489,7 +489,7 @@ fn P(o: O) {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [template]
 // CHECK:STDOUT:   %I.1: %I.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %HasI.type, %I.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @HasI.%I.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @HasI.%I.decl [template]
 // CHECK:STDOUT:   %B: type = class_type @B [template]
 // CHECK:STDOUT:   %J.type: type = fn_type @J [template]
 // CHECK:STDOUT:   %J: %J.type = struct_value () [template]
@@ -539,7 +539,7 @@ fn P(o: O) {
 // CHECK:STDOUT: interface @HasI {
 // CHECK:STDOUT:   %Self: %HasI.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %I.decl: %I.type.1 = fn_decl @I.1 [template = constants.%I.1] {} {}
-// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity %I.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity element0, %I.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -634,7 +634,7 @@ fn P(o: O) {
 // CHECK:STDOUT:   %K.type.2: type = fn_type @K.2 [template]
 // CHECK:STDOUT:   %K.2: %K.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %HasK.type, %K.type.2 [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @HasK.%K.decl, element0 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, @HasK.%K.decl [template]
 // CHECK:STDOUT:   %L: type = class_type @L [template]
 // CHECK:STDOUT:   %.6: type = unbound_element_type %L, %Base [template]
 // CHECK:STDOUT:   %K.type.3: type = fn_type @K.3 [template]
@@ -679,7 +679,7 @@ fn P(o: O) {
 // CHECK:STDOUT: interface @HasK {
 // CHECK:STDOUT:   %Self: %HasK.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %K.decl: %K.type.2 = fn_decl @K.2 [template = constants.%K.2] {} {}
-// CHECK:STDOUT:   %.loc9: %.3 = assoc_entity %K.decl, element0 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc9: %.3 = assoc_entity element0, %K.decl [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -765,13 +765,13 @@ fn P(o: O) {
 // CHECK:STDOUT:   %N.type.2: type = fn_type @N.2 [template]
 // CHECK:STDOUT:   %N.2: %N.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %HasN1.type, %N.type.2 [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @HasN1.%N.decl, element0 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, @HasN1.%N.decl [template]
 // CHECK:STDOUT:   %HasN2.type: type = facet_type <@HasN2> [template]
 // CHECK:STDOUT:   %Self.2: %HasN2.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %N.type.3: type = fn_type @N.3 [template]
 // CHECK:STDOUT:   %N.3: %N.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %HasN2.type, %N.type.3 [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity @HasN2.%N.decl, element0 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, @HasN2.%N.decl [template]
 // CHECK:STDOUT:   %O: type = class_type @O [template]
 // CHECK:STDOUT:   %.8: type = unbound_element_type %O, %NBase [template]
 // CHECK:STDOUT:   %N.type.4: type = fn_type @N.4 [template]
@@ -824,7 +824,7 @@ fn P(o: O) {
 // CHECK:STDOUT: interface @HasN1 {
 // CHECK:STDOUT:   %Self: %HasN1.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1]
 // CHECK:STDOUT:   %N.decl: %N.type.2 = fn_decl @N.2 [template = constants.%N.2] {} {}
-// CHECK:STDOUT:   %.loc9: %.3 = assoc_entity %N.decl, element0 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc9: %.3 = assoc_entity element0, %N.decl [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -835,7 +835,7 @@ fn P(o: O) {
 // CHECK:STDOUT: interface @HasN2 {
 // CHECK:STDOUT:   %Self: %HasN2.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.2]
 // CHECK:STDOUT:   %N.decl: %N.type.3 = fn_decl @N.3 [template = constants.%N.3] {} {}
-// CHECK:STDOUT:   %.loc13: %.5 = assoc_entity %N.decl, element0 [template = constants.%.6]
+// CHECK:STDOUT:   %.loc13: %.5 = assoc_entity element0, %N.decl [template = constants.%.6]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/no_prelude/basic.carbon b/toolchain/check/testdata/impl/no_prelude/basic.carbon
index 25d4637f3843e..04c2b0eb4bc30 100644
--- a/toolchain/check/testdata/impl/no_prelude/basic.carbon
+++ b/toolchain/check/testdata/impl/no_prelude/basic.carbon
@@ -26,7 +26,7 @@ impl C as Simple {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Simple.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Simple.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Simple.%F.decl [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %.3: type = struct_type {} [template]
 // CHECK:STDOUT:   %.4: <witness> = complete_type_witness %.3 [template]
@@ -52,7 +52,7 @@ impl C as Simple {
 // CHECK:STDOUT: interface @Simple {
 // CHECK:STDOUT:   %Self: %Simple.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/no_prelude/import_extend_impl.carbon b/toolchain/check/testdata/impl/no_prelude/import_extend_impl.carbon
index a57fe0d07c481..f16d5145cf4c2 100644
--- a/toolchain/check/testdata/impl/no_prelude/import_extend_impl.carbon
+++ b/toolchain/check/testdata/impl/no_prelude/import_extend_impl.carbon
@@ -41,7 +41,7 @@ fn G(c: C) {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
@@ -63,7 +63,7 @@ fn G(c: C) {
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -120,7 +120,7 @@ fn G(c: C) {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %I.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity imports.%import_ref.9, element0 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, imports.%import_ref.9 [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.6: <witness> = interface_witness (%F.2) [template]
diff --git a/toolchain/check/testdata/impl/no_prelude/import_self.carbon b/toolchain/check/testdata/impl/no_prelude/import_self.carbon
index a59ad4ac83ae1..911a4390a2bcb 100644
--- a/toolchain/check/testdata/impl/no_prelude/import_self.carbon
+++ b/toolchain/check/testdata/impl/no_prelude/import_self.carbon
@@ -39,7 +39,7 @@ fn F(x: (), y: ()) -> () {
 // CHECK:STDOUT:   %Op.type: type = fn_type @Op [template]
 // CHECK:STDOUT:   %Op: %Op.type = struct_value () [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %Add.type, %Op.type [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @Add.%Op.decl, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @Add.%Op.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -75,7 +75,7 @@ fn F(x: (), y: ()) -> () {
 // CHECK:STDOUT:     %return.param: ref @Op.%.loc5_15.1 (%.1) = out_param runtime_param2
 // CHECK:STDOUT:     %return: ref @Op.%.loc5_15.1 (%.1) = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc5: %.2 = assoc_entity %Op.decl, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc5: %.2 = assoc_entity element0, %Op.decl [template = constants.%.3]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -112,7 +112,7 @@ fn F(x: (), y: ()) -> () {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %Add.type, %Op.type.2 [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity imports.%import_ref.5, element0 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, imports.%import_ref.5 [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
diff --git a/toolchain/check/testdata/impl/no_prelude/import_use_generic.carbon b/toolchain/check/testdata/impl/no_prelude/import_use_generic.carbon
index 44603d2193f82..02db99b32a356 100644
--- a/toolchain/check/testdata/impl/no_prelude/import_use_generic.carbon
+++ b/toolchain/check/testdata/impl/no_prelude/import_use_generic.carbon
@@ -54,7 +54,7 @@ fn F() -> c.(I.F)() {}
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %I.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2, @impl(%T) [symbolic]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.5: %I.type = facet_value %C.2, %C.2 [symbolic]
@@ -90,7 +90,7 @@ fn F() -> c.(I.F)() {}
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc7: %.3 = assoc_entity %F.decl, element0 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc7: %.3 = assoc_entity element0, %F.decl [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -197,7 +197,7 @@ fn F() -> c.(I.F)() {}
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %I.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity imports.%import_ref.8, element0 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, imports.%import_ref.8 [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2, @impl(%T) [symbolic]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.6: <witness> = interface_witness (%F.2) [symbolic]
diff --git a/toolchain/check/testdata/impl/no_prelude/interface_args.carbon b/toolchain/check/testdata/impl/no_prelude/interface_args.carbon
index b0fbd96e7ea12..6cd679511d2dc 100644
--- a/toolchain/check/testdata/impl/no_prelude/interface_args.carbon
+++ b/toolchain/check/testdata/impl/no_prelude/interface_args.carbon
@@ -91,7 +91,7 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Op.type.1: type = fn_type @Op.1, @Action(%T) [symbolic]
 // CHECK:STDOUT:   %Op.1: %Op.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Action.type.2, %Op.type.1 [symbolic]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Action.%Op.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Action.%Op.decl [symbolic]
 // CHECK:STDOUT:   %A: type = class_type @A [template]
 // CHECK:STDOUT:   %.3: type = struct_type {} [template]
 // CHECK:STDOUT:   %.4: <witness> = complete_type_witness %.3 [template]
@@ -103,7 +103,7 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Op.type.3: type = fn_type @Op.1, @Action(%B) [template]
 // CHECK:STDOUT:   %Op.3: %Op.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %Action.type.3, %Op.type.3 [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity @Action.%Op.decl, element0 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, @Action.%Op.decl [template]
 // CHECK:STDOUT:   %.7: %Action.type.2 = facet_value %A, %A [symbolic]
 // CHECK:STDOUT:   %.8: <witness> = interface_witness (%Op.2) [template]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
@@ -154,12 +154,12 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Op.type: type = fn_type @Op.1, @Action(%T.loc4_18.2) [symbolic = %Op.type (constants.%Op.type.1)]
 // CHECK:STDOUT:   %Op: @Action.%Op.type (%Op.type.1) = struct_value () [symbolic = %Op (constants.%Op.1)]
 // CHECK:STDOUT:   %.loc5_10.2: type = assoc_entity_type @Action.%Action.type (%Action.type.2), @Action.%Op.type (%Op.type.1) [symbolic = %.loc5_10.2 (constants.%.1)]
-// CHECK:STDOUT:   %.loc5_10.3: @Action.%.loc5_10.2 (%.1) = assoc_entity %Op.decl, element0 [symbolic = %.loc5_10.3 (constants.%.2)]
+// CHECK:STDOUT:   %.loc5_10.3: @Action.%.loc5_10.2 (%.1) = assoc_entity element0, %Op.decl [symbolic = %.loc5_10.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @Action.%Action.type (%Action.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:     %Op.decl: @Action.%Op.type (%Op.type.1) = fn_decl @Op.1 [symbolic = @Action.%Op (constants.%Op.1)] {} {}
-// CHECK:STDOUT:     %.loc5_10.1: @Action.%.loc5_10.2 (%.1) = assoc_entity %Op.decl, element0 [symbolic = %.loc5_10.3 (constants.%.2)]
+// CHECK:STDOUT:     %.loc5_10.1: @Action.%.loc5_10.2 (%.1) = assoc_entity element0, %Op.decl [symbolic = %.loc5_10.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -270,14 +270,14 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Op.type.1: type = fn_type @Op.1, @Action(%T) [symbolic]
 // CHECK:STDOUT:   %Op.1: %Op.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %Action.type.2, %Op.type.1 [symbolic]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity imports.%import_ref.17, element0 [symbolic]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, imports.%import_ref.17 [symbolic]
 // CHECK:STDOUT:   %Op.type.2: type = fn_type @Op.1, @Action(%B) [template]
 // CHECK:STDOUT:   %Op.2: %Op.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %Action.type.3, %Op.type.2 [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity imports.%import_ref.18, element0 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, imports.%import_ref.18 [template]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [template]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [template]
-// CHECK:STDOUT:   %.8: %.3 = assoc_entity imports.%import_ref.19, element0 [symbolic]
+// CHECK:STDOUT:   %.8: %.3 = assoc_entity element0, imports.%import_ref.19 [symbolic]
 // CHECK:STDOUT:   %Op.type.3: type = fn_type @Op.2 [template]
 // CHECK:STDOUT:   %Op.3: %Op.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.9: <witness> = interface_witness (%Op.3) [template]
@@ -334,7 +334,7 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Op.type: type = fn_type @Op.1, @Action(%T) [symbolic = %Op.type (constants.%Op.type.1)]
 // CHECK:STDOUT:   %Op: @Action.%Op.type (%Op.type.1) = struct_value () [symbolic = %Op (constants.%Op.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @Action.%Action.type (%Action.type.2), @Action.%Op.type (%Op.type.1) [symbolic = %.1 (constants.%.3)]
-// CHECK:STDOUT:   %.2: @Action.%.1 (%.3) = assoc_entity imports.%import_ref.17, element0 [symbolic = %.2 (constants.%.4)]
+// CHECK:STDOUT:   %.2: @Action.%.1 (%.3) = assoc_entity element0, imports.%import_ref.17 [symbolic = %.2 (constants.%.4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -425,11 +425,11 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Op.type.1: type = fn_type @Op, @Action(%T) [symbolic]
 // CHECK:STDOUT:   %Op.1: %Op.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %Action.type.2, %Op.type.1 [symbolic]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity imports.%import_ref.17, element0 [symbolic]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, imports.%import_ref.17 [symbolic]
 // CHECK:STDOUT:   %Op.type.2: type = fn_type @Op, @Action(%B) [template]
 // CHECK:STDOUT:   %Op.2: %Op.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %Action.type.3, %Op.type.2 [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity imports.%import_ref.18, element0 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, imports.%import_ref.18 [template]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [template]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
@@ -437,8 +437,8 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Op.type.3: type = fn_type @Op, @Action(%C) [template]
 // CHECK:STDOUT:   %Op.3: %Op.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %Action.type.4, %Op.type.3 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity imports.%import_ref.17, element0 [template]
-// CHECK:STDOUT:   %.10: %.3 = assoc_entity imports.%import_ref.21, element0 [symbolic]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.17 [template]
+// CHECK:STDOUT:   %.10: %.3 = assoc_entity element0, imports.%import_ref.21 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -494,7 +494,7 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Op.type: type = fn_type @Op, @Action(%T) [symbolic = %Op.type (constants.%Op.type.1)]
 // CHECK:STDOUT:   %Op: @Action.%Op.type (%Op.type.1) = struct_value () [symbolic = %Op (constants.%Op.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @Action.%Action.type (%Action.type.2), @Action.%Op.type (%Op.type.1) [symbolic = %.1 (constants.%.3)]
-// CHECK:STDOUT:   %.2: @Action.%.1 (%.3) = assoc_entity imports.%import_ref.17, element0 [symbolic = %.2 (constants.%.4)]
+// CHECK:STDOUT:   %.2: @Action.%.1 (%.3) = assoc_entity element0, imports.%import_ref.17 [symbolic = %.2 (constants.%.4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -594,7 +594,7 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Make.type.1: type = fn_type @Make.1, @Factory(%T) [symbolic]
 // CHECK:STDOUT:   %Make.1: %Make.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Factory.type.2, %Make.type.1 [symbolic]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Factory.%Make.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Factory.%Make.decl [symbolic]
 // CHECK:STDOUT:   %A: type = class_type @A [template]
 // CHECK:STDOUT:   %.3: type = struct_type {} [template]
 // CHECK:STDOUT:   %.4: <witness> = complete_type_witness %.3 [template]
@@ -605,7 +605,7 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Make.type.3: type = fn_type @Make.1, @Factory(%B) [template]
 // CHECK:STDOUT:   %Make.3: %Make.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %Factory.type.3, %Make.type.3 [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity @Factory.%Make.decl, element0 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, @Factory.%Make.decl [template]
 // CHECK:STDOUT:   %.7: %Factory.type.2 = facet_value %A, %A [symbolic]
 // CHECK:STDOUT:   %.8: <witness> = interface_witness (%Make.2) [template]
 // CHECK:STDOUT: }
@@ -643,7 +643,7 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Make.type: type = fn_type @Make.1, @Factory(%T.loc4_19.2) [symbolic = %Make.type (constants.%Make.type.1)]
 // CHECK:STDOUT:   %Make: @Factory.%Make.type (%Make.type.1) = struct_value () [symbolic = %Make (constants.%Make.1)]
 // CHECK:STDOUT:   %.loc5_17.2: type = assoc_entity_type @Factory.%Factory.type (%Factory.type.2), @Factory.%Make.type (%Make.type.1) [symbolic = %.loc5_17.2 (constants.%.1)]
-// CHECK:STDOUT:   %.loc5_17.3: @Factory.%.loc5_17.2 (%.1) = assoc_entity %Make.decl, element0 [symbolic = %.loc5_17.3 (constants.%.2)]
+// CHECK:STDOUT:   %.loc5_17.3: @Factory.%.loc5_17.2 (%.1) = assoc_entity element0, %Make.decl [symbolic = %.loc5_17.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @Factory.%Factory.type (%Factory.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
@@ -655,7 +655,7 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:       %return.param: ref @Make.1.%T (%T) = out_param runtime_param0
 // CHECK:STDOUT:       %return: ref @Make.1.%T (%T) = return_slot %return.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %.loc5_17.1: @Factory.%.loc5_17.2 (%.1) = assoc_entity %Make.decl, element0 [symbolic = %.loc5_17.3 (constants.%.2)]
+// CHECK:STDOUT:     %.loc5_17.1: @Factory.%.loc5_17.2 (%.1) = assoc_entity element0, %Make.decl [symbolic = %.loc5_17.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -753,14 +753,14 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Make.type.1: type = fn_type @Make.1, @Factory(%T) [symbolic]
 // CHECK:STDOUT:   %Make.1: %Make.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %Factory.type.2, %Make.type.1 [symbolic]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity imports.%import_ref.15, element0 [symbolic]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, imports.%import_ref.15 [symbolic]
 // CHECK:STDOUT:   %Make.type.2: type = fn_type @Make.1, @Factory(%B) [template]
 // CHECK:STDOUT:   %Make.2: %Make.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %Factory.type.3, %Make.type.2 [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity imports.%import_ref.16, element0 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, imports.%import_ref.16 [template]
 // CHECK:STDOUT:   %MakeB.type: type = fn_type @MakeB [template]
 // CHECK:STDOUT:   %MakeB: %MakeB.type = struct_value () [template]
-// CHECK:STDOUT:   %.8: %.3 = assoc_entity imports.%import_ref.17, element0 [symbolic]
+// CHECK:STDOUT:   %.8: %.3 = assoc_entity element0, imports.%import_ref.17 [symbolic]
 // CHECK:STDOUT:   %Make.type.3: type = fn_type @Make.2 [template]
 // CHECK:STDOUT:   %Make.3: %Make.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.9: <witness> = interface_witness (%Make.3) [template]
@@ -818,7 +818,7 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Make.type: type = fn_type @Make.1, @Factory(%T) [symbolic = %Make.type (constants.%Make.type.1)]
 // CHECK:STDOUT:   %Make: @Factory.%Make.type (%Make.type.1) = struct_value () [symbolic = %Make (constants.%Make.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @Factory.%Factory.type (%Factory.type.2), @Factory.%Make.type (%Make.type.1) [symbolic = %.1 (constants.%.3)]
-// CHECK:STDOUT:   %.2: @Factory.%.1 (%.3) = assoc_entity imports.%import_ref.15, element0 [symbolic = %.2 (constants.%.4)]
+// CHECK:STDOUT:   %.2: @Factory.%.1 (%.3) = assoc_entity element0, imports.%import_ref.15 [symbolic = %.2 (constants.%.4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -913,11 +913,11 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Make.type.1: type = fn_type @Make, @Factory(%T) [symbolic]
 // CHECK:STDOUT:   %Make.1: %Make.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %Factory.type.2, %Make.type.1 [symbolic]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity imports.%import_ref.15, element0 [symbolic]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, imports.%import_ref.15 [symbolic]
 // CHECK:STDOUT:   %Make.type.2: type = fn_type @Make, @Factory(%B) [template]
 // CHECK:STDOUT:   %Make.2: %Make.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %Factory.type.3, %Make.type.2 [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity imports.%import_ref.16, element0 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, imports.%import_ref.16 [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %MakeC.type: type = fn_type @MakeC [template]
 // CHECK:STDOUT:   %MakeC: %MakeC.type = struct_value () [template]
@@ -925,8 +925,8 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Make.type.3: type = fn_type @Make, @Factory(%C) [template]
 // CHECK:STDOUT:   %Make.3: %Make.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %Factory.type.4, %Make.type.3 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity imports.%import_ref.15, element0 [template]
-// CHECK:STDOUT:   %.10: %.3 = assoc_entity imports.%import_ref.17, element0 [symbolic]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.15 [template]
+// CHECK:STDOUT:   %.10: %.3 = assoc_entity element0, imports.%import_ref.17 [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -983,7 +983,7 @@ fn MakeC(a: A) -> C {
 // CHECK:STDOUT:   %Make.type: type = fn_type @Make, @Factory(%T) [symbolic = %Make.type (constants.%Make.type.1)]
 // CHECK:STDOUT:   %Make: @Factory.%Make.type (%Make.type.1) = struct_value () [symbolic = %Make (constants.%Make.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @Factory.%Factory.type (%Factory.type.2), @Factory.%Make.type (%Make.type.1) [symbolic = %.1 (constants.%.3)]
-// CHECK:STDOUT:   %.2: @Factory.%.1 (%.3) = assoc_entity imports.%import_ref.15, element0 [symbolic = %.2 (constants.%.4)]
+// CHECK:STDOUT:   %.2: @Factory.%.1 (%.3) = assoc_entity element0, imports.%import_ref.15 [symbolic = %.2 (constants.%.4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
diff --git a/toolchain/check/testdata/impl/no_prelude/self_in_class.carbon b/toolchain/check/testdata/impl/no_prelude/self_in_class.carbon
index 05f27e74671e5..3d124caa7e656 100644
--- a/toolchain/check/testdata/impl/no_prelude/self_in_class.carbon
+++ b/toolchain/check/testdata/impl/no_prelude/self_in_class.carbon
@@ -31,7 +31,7 @@ class A {
 // CHECK:STDOUT:   %Make.type.1: type = fn_type @Make.1 [template]
 // CHECK:STDOUT:   %Make.1: %Make.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %DefaultConstructible.type, %Make.type.1 [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @DefaultConstructible.%Make.decl, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @DefaultConstructible.%Make.decl [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %.4: type = struct_type {} [template]
 // CHECK:STDOUT:   %.5: <witness> = complete_type_witness %.4 [template]
@@ -66,7 +66,7 @@ class A {
 // CHECK:STDOUT:     %return.param: ref @Make.1.%.loc12_16.1 (%.1) = out_param runtime_param0
 // CHECK:STDOUT:     %return: ref @Make.1.%.loc12_16.1 (%.1) = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc12: %.2 = assoc_entity %Make.decl, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc12: %.2 = assoc_entity element0, %Make.decl [template = constants.%.3]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/impl/no_prelude/self_in_signature.carbon b/toolchain/check/testdata/impl/no_prelude/self_in_signature.carbon
index 05d7059357b56..1151d69497b8d 100644
--- a/toolchain/check/testdata/impl/no_prelude/self_in_signature.carbon
+++ b/toolchain/check/testdata/impl/no_prelude/self_in_signature.carbon
@@ -46,7 +46,7 @@ impl D as SelfNested {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %UseSelf.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @UseSelf.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @UseSelf.%F.decl [template]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %.4: type = struct_type {} [template]
 // CHECK:STDOUT:   %.5: <witness> = complete_type_witness %.4 [template]
@@ -71,7 +71,7 @@ impl D as SelfNested {
 // CHECK:STDOUT:   %F.type.4: type = fn_type @F.4 [template]
 // CHECK:STDOUT:   %F.4: %F.type.4 = struct_value () [template]
 // CHECK:STDOUT:   %.14: type = assoc_entity_type %SelfNested.type, %F.type.4 [template]
-// CHECK:STDOUT:   %.15: %.14 = assoc_entity @SelfNested.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.15: %.14 = assoc_entity element0, @SelfNested.%F.decl [template]
 // CHECK:STDOUT:   %.16: type = ptr_type %C [template]
 // CHECK:STDOUT:   %.17: type = struct_type {.x: %C, .y: %empty_tuple.type} [template]
 // CHECK:STDOUT:   %tuple.type.3: type = tuple_type (%.16, %.17) [template]
@@ -143,7 +143,7 @@ impl D as SelfNested {
 // CHECK:STDOUT:     %return.param: ref @F.1.%.loc12_14.1 (%.1) = out_param runtime_param2
 // CHECK:STDOUT:     %return: ref @F.1.%.loc12_14.1 (%.1) = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc12: %.2 = assoc_entity %F.decl, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc12: %.2 = assoc_entity element0, %F.decl [template = constants.%.3]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -172,7 +172,7 @@ impl D as SelfNested {
 // CHECK:STDOUT:     %x.param: @F.4.%tuple.type (%tuple.type.2) = value_param runtime_param0
 // CHECK:STDOUT:     %x: @F.4.%tuple.type (%tuple.type.2) = bind_name x, %x.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc28: %.14 = assoc_entity %F.decl, element0 [template = constants.%.15]
+// CHECK:STDOUT:   %.loc28: %.14 = assoc_entity element0, %F.decl [template = constants.%.15]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/assoc_const.carbon b/toolchain/check/testdata/interface/assoc_const.carbon
index 76a3634d4a800..eb17190448049 100644
--- a/toolchain/check/testdata/interface/assoc_const.carbon
+++ b/toolchain/check/testdata/interface/assoc_const.carbon
@@ -19,13 +19,13 @@ interface I {
 // CHECK:STDOUT:   %I.type: type = facet_type <@I> [template]
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type, type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%T, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%T [template]
 // CHECK:STDOUT:   %.3: Core.IntLiteral = int_value 32 [template]
 // CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
 // CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
 // CHECK:STDOUT:   %i32: type = int_type signed, %.3 [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %I.type, %i32 [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity @I.%N, element1 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element1, @I.%N [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -48,13 +48,13 @@ interface I {
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %T: type = assoc_const_decl T [template]
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %T, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %T [template = constants.%.2]
 // CHECK:STDOUT:   %.loc13_11.1: Core.IntLiteral = int_value 32 [template = constants.%.3]
 // CHECK:STDOUT:   %int.make_type_signed: init type = call constants.%Int(%.loc13_11.1) [template = constants.%i32]
 // CHECK:STDOUT:   %.loc13_11.2: type = value_of_initializer %int.make_type_signed [template = constants.%i32]
 // CHECK:STDOUT:   %.loc13_11.3: type = converted %int.make_type_signed, %.loc13_11.2 [template = constants.%i32]
 // CHECK:STDOUT:   %N: %i32 = assoc_const_decl N [template]
-// CHECK:STDOUT:   %.loc13_14: %.4 = assoc_entity %N, element1 [template = constants.%.5]
+// CHECK:STDOUT:   %.loc13_14: %.4 = assoc_entity element1, %N [template = constants.%.5]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/fail_assoc_const_bad_default.carbon b/toolchain/check/testdata/interface/fail_assoc_const_bad_default.carbon
index c7ef4e6912518..1e414705f9fa5 100644
--- a/toolchain/check/testdata/interface/fail_assoc_const_bad_default.carbon
+++ b/toolchain/check/testdata/interface/fail_assoc_const_bad_default.carbon
@@ -25,7 +25,7 @@ interface I {
 // CHECK:STDOUT:   %Self.1: %I.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.1: Core.IntLiteral = int_value 42 [template]
 // CHECK:STDOUT:   %.25: type = assoc_entity_type %I.type, type [template]
-// CHECK:STDOUT:   %.26: %.25 = assoc_entity @I.%T, element0 [template]
+// CHECK:STDOUT:   %.26: %.25 = assoc_entity element0, @I.%T [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -50,7 +50,7 @@ interface I {
 // CHECK:STDOUT:   %.loc18_18: Core.IntLiteral = int_value 42 [template = constants.%.1]
 // CHECK:STDOUT:   %.loc18_20.1: type = converted %.loc18_18, <error> [template = <error>]
 // CHECK:STDOUT:   %T: type = assoc_const_decl T [template]
-// CHECK:STDOUT:   %.loc18_20.2: %.25 = assoc_entity %T, element0 [template = constants.%.26]
+// CHECK:STDOUT:   %.loc18_20.2: %.25 = assoc_entity element0, %T [template = constants.%.26]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/fail_todo_assoc_const_default.carbon b/toolchain/check/testdata/interface/fail_todo_assoc_const_default.carbon
index 2a841f6adbe7c..c6282f5224005 100644
--- a/toolchain/check/testdata/interface/fail_todo_assoc_const_default.carbon
+++ b/toolchain/check/testdata/interface/fail_todo_assoc_const_default.carbon
@@ -32,7 +32,7 @@ interface I {
 // CHECK:STDOUT:   %tuple.type.1: type = tuple_type (type, type) [template]
 // CHECK:STDOUT:   %tuple.type.2: type = tuple_type (%i32, %i32) [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %I.type, type [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @I.%T, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @I.%T [template]
 // CHECK:STDOUT:   %.4: Core.IntLiteral = int_value 42 [template]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
 // CHECK:STDOUT:   %Convert.type.14: type = fn_type @Convert.2, @impl.1(%.1) [template]
@@ -42,7 +42,7 @@ interface I {
 // CHECK:STDOUT:   %.30: <specific function> = specific_function %.29, @Convert.2(%.1) [template]
 // CHECK:STDOUT:   %.31: %i32 = int_value 42 [template]
 // CHECK:STDOUT:   %.32: type = assoc_entity_type %I.type, %i32 [template]
-// CHECK:STDOUT:   %.33: %.32 = assoc_entity @I.%N, element1 [template]
+// CHECK:STDOUT:   %.33: %.32 = assoc_entity element1, @I.%N [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -76,7 +76,7 @@ interface I {
 // CHECK:STDOUT:   %.loc16_36.4: type = converted %int.make_type_signed.loc16_32, %.loc16_36.3 [template = constants.%i32]
 // CHECK:STDOUT:   %.loc16_36.5: type = converted %.loc16_35, constants.%tuple.type.2 [template = constants.%tuple.type.2]
 // CHECK:STDOUT:   %T: type = assoc_const_decl T [template]
-// CHECK:STDOUT:   %.loc16_36.6: %.2 = assoc_entity %T, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc16_36.6: %.2 = assoc_entity element0, %T [template = constants.%.3]
 // CHECK:STDOUT:   %.loc20_19.1: Core.IntLiteral = int_value 32 [template = constants.%.1]
 // CHECK:STDOUT:   %int.make_type_signed.loc20: init type = call constants.%Int(%.loc20_19.1) [template = constants.%i32]
 // CHECK:STDOUT:   %.loc20_19.2: type = value_of_initializer %int.make_type_signed.loc20 [template = constants.%i32]
@@ -89,7 +89,7 @@ interface I {
 // CHECK:STDOUT:   %.loc20_27.4: %i32 = value_of_initializer %int.convert_checked [template = constants.%.31]
 // CHECK:STDOUT:   %.loc20_27.5: %i32 = converted %.loc20_25, %.loc20_27.4 [template = constants.%.31]
 // CHECK:STDOUT:   %N: %i32 = assoc_const_decl N [template]
-// CHECK:STDOUT:   %.loc20_27.6: %.32 = assoc_entity %N, element1 [template = constants.%.33]
+// CHECK:STDOUT:   %.loc20_27.6: %.32 = assoc_entity element1, %N [template = constants.%.33]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/fail_todo_define_default_fn_inline.carbon b/toolchain/check/testdata/interface/fail_todo_define_default_fn_inline.carbon
index 1ce25de332272..abeb9af97bd7d 100644
--- a/toolchain/check/testdata/interface/fail_todo_define_default_fn_inline.carbon
+++ b/toolchain/check/testdata/interface/fail_todo_define_default_fn_inline.carbon
@@ -29,7 +29,7 @@ interface Interface {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Interface.type, %F.type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Interface.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Interface.%F.decl [template]
 // CHECK:STDOUT:   %.3: Core.IntLiteral = int_value 32 [template]
 // CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
 // CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
@@ -37,7 +37,7 @@ interface Interface {
 // CHECK:STDOUT:   %G.type: type = fn_type @G [template]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %Interface.type, %G.type [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity @Interface.%G.decl, element1 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element1, @Interface.%G.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -60,7 +60,7 @@ interface Interface {
 // CHECK:STDOUT: interface @Interface {
 // CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {} {}
-// CHECK:STDOUT:   %.loc16: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc16: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [template = constants.%G] {
 // CHECK:STDOUT:     %a.patt: %i32 = binding_pattern a
 // CHECK:STDOUT:     %a.param_patt: %i32 = value_param_pattern %a.patt, runtime_param0
@@ -88,7 +88,7 @@ interface Interface {
 // CHECK:STDOUT:     %return.param: ref %i32 = out_param runtime_param2
 // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc21: %.4 = assoc_entity %G.decl, element1 [template = constants.%.5]
+// CHECK:STDOUT:   %.loc21: %.4 = assoc_entity element1, %G.decl [template = constants.%.5]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/fail_todo_define_default_fn_out_of_line.carbon b/toolchain/check/testdata/interface/fail_todo_define_default_fn_out_of_line.carbon
index 38e1ed1d18a64..7e6c403b570d5 100644
--- a/toolchain/check/testdata/interface/fail_todo_define_default_fn_out_of_line.carbon
+++ b/toolchain/check/testdata/interface/fail_todo_define_default_fn_out_of_line.carbon
@@ -71,7 +71,7 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Interface.type, %F.type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Interface.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Interface.%F.decl [template]
 // CHECK:STDOUT:   %.3: Core.IntLiteral = int_value 32 [template]
 // CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
 // CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
@@ -79,7 +79,7 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT:   %G.type: type = fn_type @G [template]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %Interface.type, %G.type [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity @Interface.%G.decl, element1 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element1, @Interface.%G.decl [template]
 // CHECK:STDOUT:   %.type.1: type = fn_type @.1 [template]
 // CHECK:STDOUT:   %.6: %.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.type.2: type = fn_type @.2 [template]
@@ -134,7 +134,7 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT: interface @Interface {
 // CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {} {}
-// CHECK:STDOUT:   %.loc7: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc7: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [template = constants.%G] {
 // CHECK:STDOUT:     %a.patt: %i32 = binding_pattern a
 // CHECK:STDOUT:     %a.param_patt: %i32 = value_param_pattern %a.patt, runtime_param0
@@ -162,7 +162,7 @@ fn Interface.C.F[self: Self](U:! type, u: U) -> U { return u; }
 // CHECK:STDOUT:     %return.param: ref %i32 = out_param runtime_param2
 // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc13: %.4 = assoc_entity %G.decl, element1 [template = constants.%.5]
+// CHECK:STDOUT:   %.loc13: %.4 = assoc_entity element1, %G.decl [template = constants.%.5]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/no_prelude/assoc_const_in_generic.carbon b/toolchain/check/testdata/interface/no_prelude/assoc_const_in_generic.carbon
index 6a2cbb02810dc..59cb088e8bc8a 100644
--- a/toolchain/check/testdata/interface/no_prelude/assoc_const_in_generic.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/assoc_const_in_generic.carbon
@@ -38,7 +38,7 @@ fn H() {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F, @I(%T) [symbolic]
 // CHECK:STDOUT:   %F: %F.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type.2, %F.type.1 [symbolic]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%F.decl [symbolic]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [template]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [template]
 // CHECK:STDOUT:   %H.type: type = fn_type @H [template]
@@ -48,7 +48,7 @@ fn H() {
 // CHECK:STDOUT:   %I.type.3: type = facet_type <@I, @I(%.3)> [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F, @I(%.3) [template]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %I.type.3, %F.type.2 [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -84,7 +84,7 @@ fn H() {
 // CHECK:STDOUT:   %F.type: type = fn_type @F, @I(%T.loc11_13.2) [symbolic = %F.type (constants.%F.type.1)]
 // CHECK:STDOUT:   %F: @I.%F.type (%F.type.1) = struct_value () [symbolic = %F (constants.%F)]
 // CHECK:STDOUT:   %.loc12_22.2: type = assoc_entity_type @I.%I.type (%I.type.2), @I.%F.type (%F.type.1) [symbolic = %.loc12_22.2 (constants.%.1)]
-// CHECK:STDOUT:   %.loc12_22.3: @I.%.loc12_22.2 (%.1) = assoc_entity %F.decl, element0 [symbolic = %.loc12_22.3 (constants.%.2)]
+// CHECK:STDOUT:   %.loc12_22.3: @I.%.loc12_22.2 (%.1) = assoc_entity element0, %F.decl [symbolic = %.loc12_22.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
@@ -100,7 +100,7 @@ fn H() {
 // CHECK:STDOUT:       %return.param: ref @F.%U.loc12_8.1 (%U) = out_param runtime_param0
 // CHECK:STDOUT:       %return: ref @F.%U.loc12_8.1 (%U) = return_slot %return.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %.loc12_22.1: @I.%.loc12_22.2 (%.1) = assoc_entity %F.decl, element0 [symbolic = %.loc12_22.3 (constants.%.2)]
+// CHECK:STDOUT:     %.loc12_22.1: @I.%.loc12_22.2 (%.1) = assoc_entity element0, %F.decl [symbolic = %.loc12_22.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -124,7 +124,7 @@ fn H() {
 // CHECK:STDOUT:   %I.type.loc19_4.2: type = facet_type <@I, @I(%T.loc15_6.2)> [symbolic = %I.type.loc19_4.2 (constants.%I.type.2)]
 // CHECK:STDOUT:   %F.type: type = fn_type @F, @I(%T.loc15_6.2) [symbolic = %F.type (constants.%F.type.1)]
 // CHECK:STDOUT:   %.loc19_7.2: type = assoc_entity_type @G.%I.type.loc19_4.2 (%I.type.2), @G.%F.type (%F.type.1) [symbolic = %.loc19_7.2 (constants.%.1)]
-// CHECK:STDOUT:   %.loc19_7.3: @G.%.loc19_7.2 (%.1) = assoc_entity @I.%F.decl, element0 [symbolic = %.loc19_7.3 (constants.%.2)]
+// CHECK:STDOUT:   %.loc19_7.3: @G.%.loc19_7.2 (%.1) = assoc_entity element0, @I.%F.decl [symbolic = %.loc19_7.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   fn(%T.param_patt: type) {
 // CHECK:STDOUT:   !entry:
diff --git a/toolchain/check/testdata/interface/no_prelude/basic.carbon b/toolchain/check/testdata/interface/no_prelude/basic.carbon
index bb31cfaf25215..912b85e4488e7 100644
--- a/toolchain/check/testdata/interface/no_prelude/basic.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/basic.carbon
@@ -27,7 +27,7 @@ interface ForwardDeclared {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %ForwardDeclared.type, %F.type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @ForwardDeclared.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @ForwardDeclared.%F.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -51,7 +51,7 @@ interface ForwardDeclared {
 // CHECK:STDOUT: interface @ForwardDeclared {
 // CHECK:STDOUT:   %Self: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.2]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {} {}
-// CHECK:STDOUT:   %.loc17: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc17: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/no_prelude/default_fn.carbon b/toolchain/check/testdata/interface/no_prelude/default_fn.carbon
index 20c1dafabb481..f02468f11919a 100644
--- a/toolchain/check/testdata/interface/no_prelude/default_fn.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/default_fn.carbon
@@ -33,7 +33,7 @@ class C {
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.3: %I.type = facet_value %C, %C [template]
@@ -53,7 +53,7 @@ class C {
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc14: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc14: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/no_prelude/fail_duplicate.carbon b/toolchain/check/testdata/interface/no_prelude/fail_duplicate.carbon
index 5e0d03d42dc82..683fdaf39be3a 100644
--- a/toolchain/check/testdata/interface/no_prelude/fail_duplicate.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/fail_duplicate.carbon
@@ -79,7 +79,7 @@ interface Class { }
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %.type, %F.type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @.1.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @.1.%F.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -101,7 +101,7 @@ interface Class { }
 // CHECK:STDOUT: interface @.1 {
 // CHECK:STDOUT:   %Self: %.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.2]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {} {}
-// CHECK:STDOUT:   %.loc14: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc14: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -127,7 +127,7 @@ interface Class { }
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %.type, %F.type [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @.1.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @.1.%F.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -158,7 +158,7 @@ interface Class { }
 // CHECK:STDOUT:     %self.param: @F.%.loc14_14.1 (%.1) = value_param runtime_param0
 // CHECK:STDOUT:     %self: @F.%.loc14_14.1 (%.1) = bind_name self, %self.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc14: %.2 = assoc_entity %F.decl, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc14: %.2 = assoc_entity element0, %F.decl [template = constants.%.3]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/no_prelude/fail_lookup_undefined.carbon b/toolchain/check/testdata/interface/no_prelude/fail_lookup_undefined.carbon
index 447a62d3d89da..2ed39d25b88d3 100644
--- a/toolchain/check/testdata/interface/no_prelude/fail_lookup_undefined.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/fail_lookup_undefined.carbon
@@ -62,7 +62,7 @@ interface BeingDefined {
 // CHECK:STDOUT:   %H.type: type = fn_type @H [template]
 // CHECK:STDOUT:   %H: %H.type = struct_value () [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %BeingDefined.type, %H.type [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @BeingDefined.%H.decl, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @BeingDefined.%H.decl [template]
 // CHECK:STDOUT:   %.type.2: type = fn_type @.2 [template]
 // CHECK:STDOUT:   %.4: %.type.2 = struct_value () [template]
 // CHECK:STDOUT: }
@@ -92,7 +92,7 @@ interface BeingDefined {
 // CHECK:STDOUT:     %return.param: ref <error> = out_param runtime_param0
 // CHECK:STDOUT:     %return: ref <error> = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc45: %.2 = assoc_entity %H.decl, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc45: %.2 = assoc_entity element0, %H.decl [template = constants.%.3]
 // CHECK:STDOUT:   %.decl: %.type.2 = fn_decl @.2 [template = constants.%.4] {} {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
diff --git a/toolchain/check/testdata/interface/no_prelude/fail_member_lookup.carbon b/toolchain/check/testdata/interface/no_prelude/fail_member_lookup.carbon
index 7ca7dcef9779b..c63f847d0ea9b 100644
--- a/toolchain/check/testdata/interface/no_prelude/fail_member_lookup.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/fail_member_lookup.carbon
@@ -43,9 +43,9 @@ fn G(U:! Different) -> U.(Interface.T);
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Interface.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Interface.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Interface.%F.decl [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %Interface.type, type [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @Interface.%T, element1 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element1, @Interface.%T [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %Different.type: type = facet_type <@Different> [template]
@@ -86,9 +86,9 @@ fn G(U:! Different) -> U.(Interface.T);
 // CHECK:STDOUT: interface @Interface {
 // CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:   %T: type = assoc_const_decl T [template]
-// CHECK:STDOUT:   %.loc14: %.3 = assoc_entity %T, element1 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc14: %.3 = assoc_entity element1, %T [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/no_prelude/fail_modifiers.carbon b/toolchain/check/testdata/interface/no_prelude/fail_modifiers.carbon
index 03e6b59dd7fbe..e2ab1adc7dad7 100644
--- a/toolchain/check/testdata/interface/no_prelude/fail_modifiers.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/fail_modifiers.carbon
@@ -156,7 +156,7 @@ interface I {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %I.type, %F.type [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -178,7 +178,7 @@ interface I {
 // CHECK:STDOUT:     %self.param: @F.%.loc9_22.1 (%.1) = value_param runtime_param0
 // CHECK:STDOUT:     %self: @F.%.loc9_22.1 (%.1) = bind_name self, %self.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc9: %.2 = assoc_entity %F.decl, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc9: %.2 = assoc_entity element0, %F.decl [template = constants.%.3]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -207,7 +207,7 @@ interface I {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %I.type, %F.type [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -229,7 +229,7 @@ interface I {
 // CHECK:STDOUT:     %self.param: @F.%.loc8_24.1 (%.1) = value_param runtime_param0
 // CHECK:STDOUT:     %self: @F.%.loc8_24.1 (%.1) = bind_name self, %self.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc8: %.2 = assoc_entity %F.decl, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc8: %.2 = assoc_entity element0, %F.decl [template = constants.%.3]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/no_prelude/fail_redeclare_member.carbon b/toolchain/check/testdata/interface/no_prelude/fail_redeclare_member.carbon
index bed218380b91b..7bf7a8d80f60c 100644
--- a/toolchain/check/testdata/interface/no_prelude/fail_redeclare_member.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/fail_redeclare_member.carbon
@@ -27,7 +27,7 @@ interface Interface {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Interface.type, %F.type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Interface.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Interface.%F.decl [template]
 // CHECK:STDOUT:   %.type: type = fn_type @.1 [template]
 // CHECK:STDOUT:   %.3: %.type = struct_value () [template]
 // CHECK:STDOUT: }
@@ -42,7 +42,7 @@ interface Interface {
 // CHECK:STDOUT: interface @Interface {
 // CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {} {}
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:   %.decl: %.type = fn_decl @.1 [template = constants.%.3] {} {}
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
diff --git a/toolchain/check/testdata/interface/no_prelude/fail_todo_facet_lookup.carbon b/toolchain/check/testdata/interface/no_prelude/fail_todo_facet_lookup.carbon
index 683993a9a3581..b65c8745e96b6 100644
--- a/toolchain/check/testdata/interface/no_prelude/fail_todo_facet_lookup.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/fail_todo_facet_lookup.carbon
@@ -33,7 +33,7 @@ fn CallFacet(T:! Interface, x: T) {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Interface.type, %F.type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Interface.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Interface.%F.decl [template]
 // CHECK:STDOUT:   %T: %Interface.type = bind_symbolic_name T, 0 [symbolic]
 // CHECK:STDOUT:   %T.patt: %Interface.type = symbolic_binding_pattern T, 0 [symbolic]
 // CHECK:STDOUT:   %CallStatic.type: type = fn_type @CallStatic [template]
@@ -80,7 +80,7 @@ fn CallFacet(T:! Interface, x: T) {
 // CHECK:STDOUT: interface @Interface {
 // CHECK:STDOUT:   %Self: %Interface.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {} {}
-// CHECK:STDOUT:   %.loc11: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc11: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/no_prelude/fail_todo_generic_default_fn.carbon b/toolchain/check/testdata/interface/no_prelude/fail_todo_generic_default_fn.carbon
index 68a7ee85cd6db..18165de0f4db3 100644
--- a/toolchain/check/testdata/interface/no_prelude/fail_todo_generic_default_fn.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/fail_todo_generic_default_fn.carbon
@@ -34,7 +34,7 @@ fn I(T:! type).F[self: Self]() -> Self { return self; }
 // CHECK:STDOUT:   %F.type: type = fn_type @F, @I(%T) [symbolic]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %I.type.2, %F.type [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @I.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @I.%F.decl [symbolic]
 // CHECK:STDOUT:   %.type: type = fn_type @.1, @I(%T) [symbolic]
 // CHECK:STDOUT:   %.4: %.type = struct_value () [symbolic]
 // CHECK:STDOUT: }
@@ -83,7 +83,7 @@ fn I(T:! type).F[self: Self]() -> Self { return self; }
 // CHECK:STDOUT:   %F.type: type = fn_type @F, @I(%T.loc11_13.2) [symbolic = %F.type (constants.%F.type)]
 // CHECK:STDOUT:   %F: @I.%F.type (%F.type) = struct_value () [symbolic = %F (constants.%F)]
 // CHECK:STDOUT:   %.loc13_29.2: type = assoc_entity_type @I.%I.type (%I.type.2), @I.%F.type (%F.type) [symbolic = %.loc13_29.2 (constants.%.2)]
-// CHECK:STDOUT:   %.loc13_29.3: @I.%.loc13_29.2 (%.2) = assoc_entity %F.decl, element0 [symbolic = %.loc13_29.3 (constants.%.3)]
+// CHECK:STDOUT:   %.loc13_29.3: @I.%.loc13_29.2 (%.2) = assoc_entity element0, %F.decl [symbolic = %.loc13_29.3 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @I.%I.type (%I.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
@@ -106,7 +106,7 @@ fn I(T:! type).F[self: Self]() -> Self { return self; }
 // CHECK:STDOUT:       %return.param: ref @F.%.loc13_14.1 (%.1) = out_param runtime_param1
 // CHECK:STDOUT:       %return: ref @F.%.loc13_14.1 (%.1) = return_slot %return.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %.loc13_29.1: @I.%.loc13_29.2 (%.2) = assoc_entity %F.decl, element0 [symbolic = %.loc13_29.3 (constants.%.3)]
+// CHECK:STDOUT:     %.loc13_29.1: @I.%.loc13_29.2 (%.2) = assoc_entity element0, %F.decl [symbolic = %.loc13_29.3 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
diff --git a/toolchain/check/testdata/interface/no_prelude/fail_todo_modifiers.carbon b/toolchain/check/testdata/interface/no_prelude/fail_todo_modifiers.carbon
index a4bf80480bd40..332ad577d7cf6 100644
--- a/toolchain/check/testdata/interface/no_prelude/fail_todo_modifiers.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/fail_todo_modifiers.carbon
@@ -28,11 +28,11 @@ interface Modifiers {
 // CHECK:STDOUT:   %Final.type: type = fn_type @Final [template]
 // CHECK:STDOUT:   %Final: %Final.type = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Modifiers.type, %Final.type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Modifiers.%Final.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Modifiers.%Final.decl [template]
 // CHECK:STDOUT:   %Default.type: type = fn_type @Default [template]
 // CHECK:STDOUT:   %Default: %Default.type = struct_value () [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %Modifiers.type, %Default.type [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @Modifiers.%Default.decl, element1 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element1, @Modifiers.%Default.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -45,9 +45,9 @@ interface Modifiers {
 // CHECK:STDOUT: interface @Modifiers {
 // CHECK:STDOUT:   %Self: %Modifiers.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %Final.decl: %Final.type = fn_decl @Final [template = constants.%Final] {} {}
-// CHECK:STDOUT:   %.loc16: %.1 = assoc_entity %Final.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc16: %.1 = assoc_entity element0, %Final.decl [template = constants.%.2]
 // CHECK:STDOUT:   %Default.decl: %Default.type = fn_decl @Default [template = constants.%Default] {} {}
-// CHECK:STDOUT:   %.loc20: %.3 = assoc_entity %Default.decl, element1 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc20: %.3 = assoc_entity element1, %Default.decl [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/no_prelude/generic.carbon b/toolchain/check/testdata/interface/no_prelude/generic.carbon
index 2c87c513e6e28..e5c989ef51d24 100644
--- a/toolchain/check/testdata/interface/no_prelude/generic.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/generic.carbon
@@ -78,7 +78,7 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1, @WithAssocFn(%T.1) [symbolic]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %WithAssocFn.type.2, %F.type.1 [symbolic]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @WithAssocFn.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, @WithAssocFn.%F.decl [symbolic]
 // CHECK:STDOUT:   %C: type = class_type @C [template]
 // CHECK:STDOUT:   %Simple.type.3: type = facet_type <@Simple, @Simple(%C)> [template]
 // CHECK:STDOUT:   %.5: <witness> = interface_witness () [template]
@@ -88,7 +88,7 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %F.type.3: type = fn_type @F.1, @WithAssocFn(%C) [template]
 // CHECK:STDOUT:   %F.3: %F.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.6: type = assoc_entity_type %WithAssocFn.type.3, %F.type.3 [template]
-// CHECK:STDOUT:   %.7: %.6 = assoc_entity @WithAssocFn.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.7: %.6 = assoc_entity element0, @WithAssocFn.%F.decl [template]
 // CHECK:STDOUT:   %.8: %WithAssocFn.type.2 = facet_value %C, %C [symbolic]
 // CHECK:STDOUT:   %.9: <witness> = interface_witness (%F.2) [template]
 // CHECK:STDOUT:   %struct: %X = struct_value () [template]
@@ -192,7 +192,7 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:   %F.type: type = fn_type @F.1, @WithAssocFn(%T.loc8_23.2) [symbolic = %F.type (constants.%F.type.1)]
 // CHECK:STDOUT:   %F: @WithAssocFn.%F.type (%F.type.1) = struct_value () [symbolic = %F (constants.%F.1)]
 // CHECK:STDOUT:   %.loc10_14.2: type = assoc_entity_type @WithAssocFn.%WithAssocFn.type (%WithAssocFn.type.2), @WithAssocFn.%F.type (%F.type.1) [symbolic = %.loc10_14.2 (constants.%.3)]
-// CHECK:STDOUT:   %.loc10_14.3: @WithAssocFn.%.loc10_14.2 (%.3) = assoc_entity %F.decl, element0 [symbolic = %.loc10_14.3 (constants.%.4)]
+// CHECK:STDOUT:   %.loc10_14.3: @WithAssocFn.%.loc10_14.2 (%.3) = assoc_entity element0, %F.decl [symbolic = %.loc10_14.3 (constants.%.4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @WithAssocFn.%WithAssocFn.type (%WithAssocFn.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self.2)]
@@ -204,7 +204,7 @@ fn G(T:! Generic(B)) {
 // CHECK:STDOUT:       %return.param: ref %X = out_param runtime_param0
 // CHECK:STDOUT:       %return: ref %X = return_slot %return.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %.loc10_14.1: @WithAssocFn.%.loc10_14.2 (%.3) = assoc_entity %F.decl, element0 [symbolic = %.loc10_14.3 (constants.%.4)]
+// CHECK:STDOUT:     %.loc10_14.1: @WithAssocFn.%.loc10_14.2 (%.3) = assoc_entity element0, %F.decl [symbolic = %.loc10_14.3 (constants.%.4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
diff --git a/toolchain/check/testdata/interface/no_prelude/generic_binding_after_assoc_const.carbon b/toolchain/check/testdata/interface/no_prelude/generic_binding_after_assoc_const.carbon
index 6b224ca5fd0d0..787a606ba78fb 100644
--- a/toolchain/check/testdata/interface/no_prelude/generic_binding_after_assoc_const.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/generic_binding_after_assoc_const.carbon
@@ -26,13 +26,13 @@ interface I {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type, %F.type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %I.type, type [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @I.%U, element1 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element1, @I.%U [template]
 // CHECK:STDOUT:   %G.type: type = fn_type @G [template]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [template]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %I.type, %G.type [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity @I.%G.decl, element2 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element2, @I.%G.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -51,9 +51,9 @@ interface I {
 // CHECK:STDOUT:     %T.param: type = value_param runtime_param<invalid>
 // CHECK:STDOUT:     %T.loc12_8.2: type = bind_symbolic_name T, 1, %T.param [symbolic = %T.loc12_8.1 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc12: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:   %U: type = assoc_const_decl U [template]
-// CHECK:STDOUT:   %.loc13: %.3 = assoc_entity %U, element1 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc13: %.3 = assoc_entity element1, %U [template = constants.%.4]
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [template = constants.%G] {
 // CHECK:STDOUT:     %T.patt.loc16_8.2: type = symbolic_binding_pattern T, 1 [symbolic = %T.patt.loc16_8.1 (constants.%T.patt)]
 // CHECK:STDOUT:     %T.param_patt: type = value_param_pattern %T.patt.loc16_8.2, runtime_param<invalid> [symbolic = %T.patt.loc16_8.1 (constants.%T.patt)]
@@ -61,7 +61,7 @@ interface I {
 // CHECK:STDOUT:     %T.param: type = value_param runtime_param<invalid>
 // CHECK:STDOUT:     %T.loc16_8.2: type = bind_symbolic_name T, 1, %T.param [symbolic = %T.loc16_8.1 (constants.%T)]
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc16: %.5 = assoc_entity %G.decl, element2 [template = constants.%.6]
+// CHECK:STDOUT:   %.loc16: %.5 = assoc_entity element2, %G.decl [template = constants.%.6]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/no_prelude/generic_import.carbon b/toolchain/check/testdata/interface/no_prelude/generic_import.carbon
index 8fb8f6b7570c6..f883094dbb021 100644
--- a/toolchain/check/testdata/interface/no_prelude/generic_import.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/generic_import.carbon
@@ -39,7 +39,7 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:   %F.type: type = fn_type @F, @AddWith(%T) [symbolic]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %AddWith.type.2, %F.type [symbolic]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @AddWith.%F.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @AddWith.%F.decl [symbolic]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -65,12 +65,12 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:   %F.type: type = fn_type @F, @AddWith(%T.loc4_19.2) [symbolic = %F.type (constants.%F.type)]
 // CHECK:STDOUT:   %F: @AddWith.%F.type (%F.type) = struct_value () [symbolic = %F (constants.%F)]
 // CHECK:STDOUT:   %.loc5_9.2: type = assoc_entity_type @AddWith.%AddWith.type (%AddWith.type.2), @AddWith.%F.type (%F.type) [symbolic = %.loc5_9.2 (constants.%.1)]
-// CHECK:STDOUT:   %.loc5_9.3: @AddWith.%.loc5_9.2 (%.1) = assoc_entity %F.decl, element0 [symbolic = %.loc5_9.3 (constants.%.2)]
+// CHECK:STDOUT:   %.loc5_9.3: @AddWith.%.loc5_9.2 (%.1) = assoc_entity element0, %F.decl [symbolic = %.loc5_9.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @AddWith.%AddWith.type (%AddWith.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
 // CHECK:STDOUT:     %F.decl: @AddWith.%F.type (%F.type) = fn_decl @F [symbolic = @AddWith.%F (constants.%F)] {} {}
-// CHECK:STDOUT:     %.loc5_9.1: @AddWith.%.loc5_9.2 (%.1) = assoc_entity %F.decl, element0 [symbolic = %.loc5_9.3 (constants.%.2)]
+// CHECK:STDOUT:     %.loc5_9.1: @AddWith.%.loc5_9.2 (%.1) = assoc_entity element0, %F.decl [symbolic = %.loc5_9.3 (constants.%.2)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -112,14 +112,14 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1, @AddWith(%T) [symbolic]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %AddWith.type.2, %F.type.1 [symbolic]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity imports.%import_ref.5, element0 [symbolic]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element0, imports.%import_ref.5 [symbolic]
 // CHECK:STDOUT:   %AddWith.type.3: type = facet_type <@AddWith, @AddWith(%C)> [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %F.type.3: type = fn_type @F.1, @AddWith(%C) [template]
 // CHECK:STDOUT:   %F.3: %F.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %AddWith.type.3, %F.type.3 [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity imports.%import_ref.5, element0 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, imports.%import_ref.5 [template]
 // CHECK:STDOUT:   %.7: %AddWith.type.2 = facet_value %C, %C [symbolic]
 // CHECK:STDOUT:   %.8: <witness> = interface_witness (%F.2) [template]
 // CHECK:STDOUT: }
@@ -157,7 +157,7 @@ impl C as AddWith(C) {
 // CHECK:STDOUT:   %F.type: type = fn_type @F.1, @AddWith(%T) [symbolic = %F.type (constants.%F.type.1)]
 // CHECK:STDOUT:   %F: @AddWith.%F.type (%F.type.1) = struct_value () [symbolic = %F (constants.%F.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @AddWith.%AddWith.type (%AddWith.type.2), @AddWith.%F.type (%F.type.1) [symbolic = %.1 (constants.%.3)]
-// CHECK:STDOUT:   %.2: @AddWith.%.1 (%.3) = assoc_entity imports.%import_ref.5, element0 [symbolic = %.2 (constants.%.4)]
+// CHECK:STDOUT:   %.2: @AddWith.%.1 (%.3) = assoc_entity element0, imports.%import_ref.5 [symbolic = %.2 (constants.%.4)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
diff --git a/toolchain/check/testdata/interface/no_prelude/import.carbon b/toolchain/check/testdata/interface/no_prelude/import.carbon
index e6130048f45fd..85e780721c9b5 100644
--- a/toolchain/check/testdata/interface/no_prelude/import.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/import.carbon
@@ -56,19 +56,19 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT:   %Basic.type: type = facet_type <@Basic> [template]
 // CHECK:STDOUT:   %Self.2: %Basic.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Basic.type, type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @Basic.%T, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @Basic.%T [template]
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %F.1: %F.type.1 = struct_value () [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %Basic.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @Basic.%F.decl, element1 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element1, @Basic.%F.decl [template]
 // CHECK:STDOUT:   %ForwardDeclared.type: type = facet_type <@ForwardDeclared> [template]
 // CHECK:STDOUT:   %Self.3: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %ForwardDeclared.type, type [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity @ForwardDeclared.%T, element0 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, @ForwardDeclared.%T [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %F.2: %F.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.7: type = assoc_entity_type %ForwardDeclared.type, %F.type.2 [template]
-// CHECK:STDOUT:   %.8: %.7 = assoc_entity @ForwardDeclared.%F.decl, element1 [template]
+// CHECK:STDOUT:   %.8: %.7 = assoc_entity element1, @ForwardDeclared.%F.decl [template]
 // CHECK:STDOUT:   %.9: type = struct_type {.f: %ForwardDeclared.type} [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
@@ -99,9 +99,9 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT: interface @Basic {
 // CHECK:STDOUT:   %Self: %Basic.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.2]
 // CHECK:STDOUT:   %T: type = assoc_const_decl T [template]
-// CHECK:STDOUT:   %.loc8: %.1 = assoc_entity %T, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc8: %.1 = assoc_entity element0, %T [template = constants.%.2]
 // CHECK:STDOUT:   %F.decl: %F.type.1 = fn_decl @F.1 [template = constants.%F.1] {} {}
-// CHECK:STDOUT:   %.loc9: %.3 = assoc_entity %F.decl, element1 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc9: %.3 = assoc_entity element1, %F.decl [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -113,9 +113,9 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT: interface @ForwardDeclared {
 // CHECK:STDOUT:   %Self: %ForwardDeclared.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3]
 // CHECK:STDOUT:   %T: type = assoc_const_decl T [template]
-// CHECK:STDOUT:   %.loc16: %.5 = assoc_entity %T, element0 [template = constants.%.6]
+// CHECK:STDOUT:   %.loc16: %.5 = assoc_entity element0, %T [template = constants.%.6]
 // CHECK:STDOUT:   %F.decl: %F.type.2 = fn_decl @F.2 [template = constants.%F.2] {} {}
-// CHECK:STDOUT:   %.loc17: %.7 = assoc_entity %F.decl, element1 [template = constants.%.8]
+// CHECK:STDOUT:   %.loc17: %.7 = assoc_entity element1, %F.decl [template = constants.%.8]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -153,15 +153,15 @@ var f: ForwardDeclared* = &f_ref.f;
 // CHECK:STDOUT:   %UseForwardDeclared.type: type = fn_type @UseForwardDeclared [template]
 // CHECK:STDOUT:   %UseForwardDeclared: %UseForwardDeclared.type = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %Basic.type, type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity imports.%import_ref.16, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, imports.%import_ref.16 [template]
 // CHECK:STDOUT:   %F.type.1: type = fn_type @F.1 [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %Basic.type, %F.type.1 [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity imports.%import_ref.17, element1 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element1, imports.%import_ref.17 [template]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %ForwardDeclared.type, type [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity imports.%import_ref.18, element0 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, imports.%import_ref.18 [template]
 // CHECK:STDOUT:   %F.type.2: type = fn_type @F.2 [template]
 // CHECK:STDOUT:   %.7: type = assoc_entity_type %ForwardDeclared.type, %F.type.2 [template]
-// CHECK:STDOUT:   %.8: %.7 = assoc_entity imports.%import_ref.19, element1 [template]
+// CHECK:STDOUT:   %.8: %.7 = assoc_entity element1, imports.%import_ref.19 [template]
 // CHECK:STDOUT:   %.9: type = ptr_type %ForwardDeclared.type [template]
 // CHECK:STDOUT:   %.10: type = struct_type {.f: %ForwardDeclared.type} [template]
 // CHECK:STDOUT: }
diff --git a/toolchain/check/testdata/interface/no_prelude/self.carbon b/toolchain/check/testdata/interface/no_prelude/self.carbon
index e3f3cae098272..0c6c923bcbb7d 100644
--- a/toolchain/check/testdata/interface/no_prelude/self.carbon
+++ b/toolchain/check/testdata/interface/no_prelude/self.carbon
@@ -21,7 +21,7 @@ interface UseSelf {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %UseSelf.type, %F.type [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @UseSelf.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @UseSelf.%F.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: file {
@@ -50,7 +50,7 @@ interface UseSelf {
 // CHECK:STDOUT:     %return.param: ref @F.%.loc12_14.1 (%.1) = out_param runtime_param1
 // CHECK:STDOUT:     %return: ref @F.%.loc12_14.1 (%.1) = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc12: %.2 = assoc_entity %F.decl, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc12: %.2 = assoc_entity element0, %F.decl [template = constants.%.3]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/interface/todo_define_not_default.carbon b/toolchain/check/testdata/interface/todo_define_not_default.carbon
index 326af74fd0940..4a1e3d1ebb291 100644
--- a/toolchain/check/testdata/interface/todo_define_not_default.carbon
+++ b/toolchain/check/testdata/interface/todo_define_not_default.carbon
@@ -27,7 +27,7 @@ interface I {
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type, %F.type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%F.decl, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%F.decl [template]
 // CHECK:STDOUT:   %.3: Core.IntLiteral = int_value 32 [template]
 // CHECK:STDOUT:   %Int.type: type = fn_type @Int [template]
 // CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
@@ -35,11 +35,11 @@ interface I {
 // CHECK:STDOUT:   %G.type: type = fn_type @G [template]
 // CHECK:STDOUT:   %G: %G.type = struct_value () [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %I.type, %G.type [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity @I.%G.decl, element1 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element1, @I.%G.decl [template]
 // CHECK:STDOUT:   %tuple.type.1: type = tuple_type (type, type) [template]
 // CHECK:STDOUT:   %tuple.type.2: type = tuple_type (%i32, %i32) [template]
 // CHECK:STDOUT:   %.6: type = assoc_entity_type %I.type, type [template]
-// CHECK:STDOUT:   %.7: %.6 = assoc_entity @I.%T, element2 [template]
+// CHECK:STDOUT:   %.7: %.6 = assoc_entity element2, @I.%T [template]
 // CHECK:STDOUT:   %.8: Core.IntLiteral = int_value 42 [template]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
 // CHECK:STDOUT:   %Convert.type.14: type = fn_type @Convert.2, @impl.1(%.3) [template]
@@ -49,7 +49,7 @@ interface I {
 // CHECK:STDOUT:   %.34: <specific function> = specific_function %.33, @Convert.2(%.3) [template]
 // CHECK:STDOUT:   %.35: %i32 = int_value 42 [template]
 // CHECK:STDOUT:   %.36: type = assoc_entity_type %I.type, %i32 [template]
-// CHECK:STDOUT:   %.37: %.36 = assoc_entity @I.%N, element3 [template]
+// CHECK:STDOUT:   %.37: %.36 = assoc_entity element3, @I.%N [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -73,7 +73,7 @@ interface I {
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type = bind_symbolic_name Self, 0 [symbolic = constants.%Self.1]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {} {}
-// CHECK:STDOUT:   %.loc13: %.1 = assoc_entity %F.decl, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc13: %.1 = assoc_entity element0, %F.decl [template = constants.%.2]
 // CHECK:STDOUT:   %G.decl: %G.type = fn_decl @G [template = constants.%G] {
 // CHECK:STDOUT:     %a.patt: %i32 = binding_pattern a
 // CHECK:STDOUT:     %a.param_patt: %i32 = value_param_pattern %a.patt, runtime_param0
@@ -101,7 +101,7 @@ interface I {
 // CHECK:STDOUT:     %return.param: ref %i32 = out_param runtime_param2
 // CHECK:STDOUT:     %return: ref %i32 = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc14: %.4 = assoc_entity %G.decl, element1 [template = constants.%.5]
+// CHECK:STDOUT:   %.loc14: %.4 = assoc_entity element1, %G.decl [template = constants.%.5]
 // CHECK:STDOUT:   %.loc18_19: Core.IntLiteral = int_value 32 [template = constants.%.3]
 // CHECK:STDOUT:   %int.make_type_signed.loc18_19: init type = call constants.%Int(%.loc18_19) [template = constants.%i32]
 // CHECK:STDOUT:   %.loc18_24: Core.IntLiteral = int_value 32 [template = constants.%.3]
@@ -113,7 +113,7 @@ interface I {
 // CHECK:STDOUT:   %.loc18_28.4: type = converted %int.make_type_signed.loc18_24, %.loc18_28.3 [template = constants.%i32]
 // CHECK:STDOUT:   %.loc18_28.5: type = converted %.loc18_27, constants.%tuple.type.2 [template = constants.%tuple.type.2]
 // CHECK:STDOUT:   %T: type = assoc_const_decl T [template]
-// CHECK:STDOUT:   %.loc18_28.6: %.6 = assoc_entity %T, element2 [template = constants.%.7]
+// CHECK:STDOUT:   %.loc18_28.6: %.6 = assoc_entity element2, %T [template = constants.%.7]
 // CHECK:STDOUT:   %.loc19_11.1: Core.IntLiteral = int_value 32 [template = constants.%.3]
 // CHECK:STDOUT:   %int.make_type_signed.loc19: init type = call constants.%Int(%.loc19_11.1) [template = constants.%i32]
 // CHECK:STDOUT:   %.loc19_11.2: type = value_of_initializer %int.make_type_signed.loc19 [template = constants.%i32]
@@ -126,7 +126,7 @@ interface I {
 // CHECK:STDOUT:   %.loc19_19.4: %i32 = value_of_initializer %int.convert_checked [template = constants.%.35]
 // CHECK:STDOUT:   %.loc19_19.5: %i32 = converted %.loc19_17, %.loc19_19.4 [template = constants.%.35]
 // CHECK:STDOUT:   %N: %i32 = assoc_const_decl N [template]
-// CHECK:STDOUT:   %.loc19_19.6: %.36 = assoc_entity %N, element3 [template = constants.%.37]
+// CHECK:STDOUT:   %.loc19_19.6: %.36 = assoc_entity element3, %N [template = constants.%.37]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/let/compile_time_bindings.carbon b/toolchain/check/testdata/let/compile_time_bindings.carbon
index e076d55bb31c8..82b5b50675930 100644
--- a/toolchain/check/testdata/let/compile_time_bindings.carbon
+++ b/toolchain/check/testdata/let/compile_time_bindings.carbon
@@ -693,11 +693,11 @@ impl i32 as Empty {
 // CHECK:STDOUT:   %Int: %Int.type = struct_value () [template]
 // CHECK:STDOUT:   %i32: type = int_type signed, %.1 [template]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %I.type, type [template]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @I.%T, element0 [template]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @I.%T [template]
 // CHECK:STDOUT:   %F.type: type = fn_type @F [template]
 // CHECK:STDOUT:   %F: %F.type = struct_value () [template]
 // CHECK:STDOUT:   %.27: type = assoc_entity_type %I.type, %F.type [template]
-// CHECK:STDOUT:   %.28: %.27 = assoc_entity @I.%F.decl, element1 [template]
+// CHECK:STDOUT:   %.28: %.27 = assoc_entity element1, @I.%F.decl [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -725,7 +725,7 @@ impl i32 as Empty {
 // CHECK:STDOUT:   %.loc5_21.1: type = value_of_initializer %int.make_type_signed [template = constants.%i32]
 // CHECK:STDOUT:   %.loc5_21.2: type = converted %int.make_type_signed, %.loc5_21.1 [template = constants.%i32]
 // CHECK:STDOUT:   %T: type = assoc_const_decl T [template]
-// CHECK:STDOUT:   %.loc5_21.3: %.2 = assoc_entity %T, element0 [template = constants.%.3]
+// CHECK:STDOUT:   %.loc5_21.3: %.2 = assoc_entity element0, %T [template = constants.%.3]
 // CHECK:STDOUT:   %F.decl: %F.type = fn_decl @F [template = constants.%F] {
 // CHECK:STDOUT:     %return.patt: <error> = return_slot_pattern
 // CHECK:STDOUT:     %return.param_patt: <error> = out_param_pattern %return.patt, runtime_param0
@@ -735,7 +735,7 @@ impl i32 as Empty {
 // CHECK:STDOUT:     %return.param: ref <error> = out_param runtime_param0
 // CHECK:STDOUT:     %return: ref <error> = return_slot %return.param
 // CHECK:STDOUT:   }
-// CHECK:STDOUT:   %.loc13: %.27 = assoc_entity %F.decl, element1 [template = constants.%.28]
+// CHECK:STDOUT:   %.loc13: %.27 = assoc_entity element1, %F.decl [template = constants.%.28]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/operators/overloaded/no_prelude/index.carbon b/toolchain/check/testdata/operators/overloaded/no_prelude/index.carbon
index 160e7164f90bf..91ba9117e23c7 100644
--- a/toolchain/check/testdata/operators/overloaded/no_prelude/index.carbon
+++ b/toolchain/check/testdata/operators/overloaded/no_prelude/index.carbon
@@ -126,14 +126,14 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   %At.type.1: type = fn_type @At.1, @IndexWith(%SubscriptType) [symbolic]
 // CHECK:STDOUT:   %At.1: %At.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %IndexWith.type.2, %At.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @IndexWith.%At.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @IndexWith.%At.decl [symbolic]
 // CHECK:STDOUT:   %IndexWith.type.3: type = facet_type <@IndexWith, @IndexWith(%empty_tuple.type)> [template]
 // CHECK:STDOUT:   %At.type.2: type = fn_type @At.2 [template]
 // CHECK:STDOUT:   %At.2: %At.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %At.type.3: type = fn_type @At.1, @IndexWith(%empty_tuple.type) [template]
 // CHECK:STDOUT:   %At.3: %At.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.4: type = assoc_entity_type %IndexWith.type.3, %At.type.3 [template]
-// CHECK:STDOUT:   %.5: %.4 = assoc_entity @IndexWith.%At.decl, element0 [template]
+// CHECK:STDOUT:   %.5: %.4 = assoc_entity element0, @IndexWith.%At.decl [template]
 // CHECK:STDOUT:   %.6: %IndexWith.type.2 = facet_value %empty_tuple.type, %empty_tuple.type [symbolic]
 // CHECK:STDOUT:   %.7: <witness> = interface_witness (%At.2) [template]
 // CHECK:STDOUT:   %empty_tuple: %empty_tuple.type = tuple_value () [template]
@@ -179,7 +179,7 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:   %At.type: type = fn_type @At.1, @IndexWith(%SubscriptType.loc5_26.2) [symbolic = %At.type (constants.%At.type.1)]
 // CHECK:STDOUT:   %At: @IndexWith.%At.type (%At.type.1) = struct_value () [symbolic = %At (constants.%At.1)]
 // CHECK:STDOUT:   %.loc6_52.2: type = assoc_entity_type @IndexWith.%IndexWith.type (%IndexWith.type.2), @IndexWith.%At.type (%At.type.1) [symbolic = %.loc6_52.2 (constants.%.2)]
-// CHECK:STDOUT:   %.loc6_52.3: @IndexWith.%.loc6_52.2 (%.2) = assoc_entity %At.decl, element0 [symbolic = %.loc6_52.3 (constants.%.3)]
+// CHECK:STDOUT:   %.loc6_52.3: @IndexWith.%.loc6_52.2 (%.2) = assoc_entity element0, %At.decl [symbolic = %.loc6_52.3 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @IndexWith.%IndexWith.type (%IndexWith.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
@@ -205,7 +205,7 @@ fn F() { ()[()]; }
 // CHECK:STDOUT:       %return.param: ref %empty_tuple.type = out_param runtime_param2
 // CHECK:STDOUT:       %return: ref %empty_tuple.type = return_slot %return.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %.loc6_52.1: @IndexWith.%.loc6_52.2 (%.2) = assoc_entity %At.decl, element0 [symbolic = %.loc6_52.3 (constants.%.3)]
+// CHECK:STDOUT:     %.loc6_52.1: @IndexWith.%.loc6_52.2 (%.2) = assoc_entity element0, %At.decl [symbolic = %.loc6_52.3 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
diff --git a/toolchain/check/testdata/packages/implicit_imports_prelude.carbon b/toolchain/check/testdata/packages/implicit_imports_prelude.carbon
index 0451ce2260813..ecc2039e8cf2b 100644
--- a/toolchain/check/testdata/packages/implicit_imports_prelude.carbon
+++ b/toolchain/check/testdata/packages/implicit_imports_prelude.carbon
@@ -90,7 +90,7 @@ var b: i32 = a;
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity imports.%import_ref.8, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, imports.%import_ref.8 [symbolic]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.2, @impl.1(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.4: <witness> = interface_witness (%Convert.2) [symbolic]
@@ -107,7 +107,7 @@ var b: i32 = a;
 // CHECK:STDOUT:   %Convert.type.5: type = fn_type @Convert.1, @ImplicitAs(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.5: %Convert.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %ImplicitAs.type.5, %Convert.type.5 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity imports.%import_ref.15, element0 [template]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.15 [template]
 // CHECK:STDOUT:   %Convert.type.6: type = fn_type @Convert.5, @impl.4(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.6: %Convert.type.6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.10: <witness> = interface_witness (%Convert.6) [symbolic]
@@ -119,7 +119,7 @@ var b: i32 = a;
 // CHECK:STDOUT:   %Convert.7: %Convert.type.7 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.11: type = facet_access_type %Self.4 [symbolic]
 // CHECK:STDOUT:   %.12: type = assoc_entity_type %As.type.2, %Convert.type.7 [symbolic]
-// CHECK:STDOUT:   %.13: %.12 = assoc_entity imports.%import_ref.25, element0 [symbolic]
+// CHECK:STDOUT:   %.13: %.12 = assoc_entity element0, imports.%import_ref.25 [symbolic]
 // CHECK:STDOUT:   %Convert.type.8: type = fn_type @Convert.7, @impl.5(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.8: %Convert.type.8 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.14: <witness> = interface_witness (%Convert.8) [symbolic]
@@ -135,7 +135,7 @@ var b: i32 = a;
 // CHECK:STDOUT:   %Convert.type.11: type = fn_type @Convert.6, @As(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.11: %Convert.type.11 = struct_value () [template]
 // CHECK:STDOUT:   %.18: type = assoc_entity_type %As.type.5, %Convert.type.11 [template]
-// CHECK:STDOUT:   %.19: %.18 = assoc_entity imports.%import_ref.32, element0 [template]
+// CHECK:STDOUT:   %.19: %.18 = assoc_entity element0, imports.%import_ref.32 [template]
 // CHECK:STDOUT:   %Convert.type.12: type = fn_type @Convert.10, @impl.8(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.12: %Convert.type.12 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.20: <witness> = interface_witness (%Convert.12) [symbolic]
@@ -213,7 +213,7 @@ var b: i32 = a;
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.2)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity imports.%import_ref.8, element0 [symbolic = %.2 (constants.%.3)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity element0, imports.%import_ref.8 [symbolic = %.2 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -233,7 +233,7 @@ var b: i32 = a;
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.6, @As(%Dest) [symbolic = %Convert.type (constants.%Convert.type.7)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.7) = struct_value () [symbolic = %Convert (constants.%Convert.7)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.7) [symbolic = %.1 (constants.%.12)]
-// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity imports.%import_ref.25, element0 [symbolic = %.2 (constants.%.13)]
+// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity element0, imports.%import_ref.25 [symbolic = %.2 (constants.%.13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
diff --git a/toolchain/check/testdata/pointer/import.carbon b/toolchain/check/testdata/pointer/import.carbon
index 4b13ac24fde67..857a544953f6a 100644
--- a/toolchain/check/testdata/pointer/import.carbon
+++ b/toolchain/check/testdata/pointer/import.carbon
@@ -101,7 +101,7 @@ var a: i32* = a_ref;
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity imports.%import_ref.9, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, imports.%import_ref.9 [symbolic]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.2, @impl.1(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.4: <witness> = interface_witness (%Convert.2) [symbolic]
@@ -118,7 +118,7 @@ var a: i32* = a_ref;
 // CHECK:STDOUT:   %Convert.type.5: type = fn_type @Convert.1, @ImplicitAs(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.5: %Convert.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %ImplicitAs.type.5, %Convert.type.5 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity imports.%import_ref.16, element0 [template]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.16 [template]
 // CHECK:STDOUT:   %Convert.type.6: type = fn_type @Convert.5, @impl.4(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.6: %Convert.type.6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.10: <witness> = interface_witness (%Convert.6) [symbolic]
@@ -130,7 +130,7 @@ var a: i32* = a_ref;
 // CHECK:STDOUT:   %Convert.7: %Convert.type.7 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.11: type = facet_access_type %Self.4 [symbolic]
 // CHECK:STDOUT:   %.12: type = assoc_entity_type %As.type.2, %Convert.type.7 [symbolic]
-// CHECK:STDOUT:   %.13: %.12 = assoc_entity imports.%import_ref.26, element0 [symbolic]
+// CHECK:STDOUT:   %.13: %.12 = assoc_entity element0, imports.%import_ref.26 [symbolic]
 // CHECK:STDOUT:   %Convert.type.8: type = fn_type @Convert.7, @impl.5(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.8: %Convert.type.8 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.14: <witness> = interface_witness (%Convert.8) [symbolic]
@@ -146,7 +146,7 @@ var a: i32* = a_ref;
 // CHECK:STDOUT:   %Convert.type.11: type = fn_type @Convert.6, @As(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.11: %Convert.type.11 = struct_value () [template]
 // CHECK:STDOUT:   %.18: type = assoc_entity_type %As.type.5, %Convert.type.11 [template]
-// CHECK:STDOUT:   %.19: %.18 = assoc_entity imports.%import_ref.33, element0 [template]
+// CHECK:STDOUT:   %.19: %.18 = assoc_entity element0, imports.%import_ref.33 [template]
 // CHECK:STDOUT:   %Convert.type.12: type = fn_type @Convert.10, @impl.8(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.12: %Convert.type.12 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.20: <witness> = interface_witness (%Convert.12) [symbolic]
@@ -228,7 +228,7 @@ var a: i32* = a_ref;
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.2)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity imports.%import_ref.9, element0 [symbolic = %.2 (constants.%.3)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity element0, imports.%import_ref.9 [symbolic = %.2 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -248,7 +248,7 @@ var a: i32* = a_ref;
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.6, @As(%Dest) [symbolic = %Convert.type (constants.%Convert.type.7)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.7) = struct_value () [symbolic = %Convert (constants.%Convert.7)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.7) [symbolic = %.1 (constants.%.12)]
-// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity imports.%import_ref.26, element0 [symbolic = %.2 (constants.%.13)]
+// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity element0, imports.%import_ref.26 [symbolic = %.2 (constants.%.13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
diff --git a/toolchain/check/testdata/return/no_prelude/import_convert_function.carbon b/toolchain/check/testdata/return/no_prelude/import_convert_function.carbon
index 086375e46ad2f..b746a5aa9078f 100644
--- a/toolchain/check/testdata/return/no_prelude/import_convert_function.carbon
+++ b/toolchain/check/testdata/return/no_prelude/import_convert_function.carbon
@@ -79,7 +79,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %Convert.type.1: type = fn_type @Convert.1, @ImplicitAs(%T) [symbolic]
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity @ImplicitAs.%Convert.decl, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, @ImplicitAs.%Convert.decl [symbolic]
 // CHECK:STDOUT:   %.4: Core.IntLiteral = int_value 32 [template]
 // CHECK:STDOUT:   %i32: type = int_type signed, %.4 [template]
 // CHECK:STDOUT:   %ImplicitAs.type.3: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [template]
@@ -88,7 +88,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %Convert.type.3: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
 // CHECK:STDOUT:   %Convert.3: %Convert.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.5: type = assoc_entity_type %ImplicitAs.type.3, %Convert.type.3 [template]
-// CHECK:STDOUT:   %.6: %.5 = assoc_entity @ImplicitAs.%Convert.decl, element0 [template]
+// CHECK:STDOUT:   %.6: %.5 = assoc_entity element0, @ImplicitAs.%Convert.decl [template]
 // CHECK:STDOUT:   %.7: %ImplicitAs.type.2 = facet_value Core.IntLiteral, Core.IntLiteral [symbolic]
 // CHECK:STDOUT:   %.8: <witness> = interface_witness (%Convert.2) [template]
 // CHECK:STDOUT: }
@@ -152,7 +152,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%T.loc8_22.2) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.loc9_32.2: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.loc9_32.2 (constants.%.2)]
-// CHECK:STDOUT:   %.loc9_32.3: @ImplicitAs.%.loc9_32.2 (%.2) = assoc_entity %Convert.decl, element0 [symbolic = %.loc9_32.3 (constants.%.3)]
+// CHECK:STDOUT:   %.loc9_32.3: @ImplicitAs.%.loc9_32.2 (%.2) = assoc_entity element0, %Convert.decl [symbolic = %.loc9_32.3 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:     %Self.1: @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2) = bind_symbolic_name Self, 1 [symbolic = %Self.2 (constants.%Self)]
@@ -172,7 +172,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:       %return.param: ref @Convert.1.%T (%T) = out_param runtime_param1
 // CHECK:STDOUT:       %return: ref @Convert.1.%T (%T) = return_slot %return.param
 // CHECK:STDOUT:     }
-// CHECK:STDOUT:     %.loc9_32.1: @ImplicitAs.%.loc9_32.2 (%.2) = assoc_entity %Convert.decl, element0 [symbolic = %.loc9_32.3 (constants.%.3)]
+// CHECK:STDOUT:     %.loc9_32.1: @ImplicitAs.%.loc9_32.2 (%.2) = assoc_entity element0, %Convert.decl [symbolic = %.loc9_32.3 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   !members:
 // CHECK:STDOUT:     .Self = %Self.1
@@ -295,14 +295,14 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.10: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.11: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.12: %.11 = assoc_entity imports.%import_ref.6, element0 [symbolic]
+// CHECK:STDOUT:   %.12: %.11 = assoc_entity element0, imports.%import_ref.6 [symbolic]
 // CHECK:STDOUT:   %.13: type = facet_access_type %Self.1 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.3: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [template]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.14: type = assoc_entity_type %ImplicitAs.type.3, %Convert.type.2 [template]
-// CHECK:STDOUT:   %.15: %.14 = assoc_entity imports.%import_ref.6, element0 [template]
-// CHECK:STDOUT:   %.16: %.11 = assoc_entity imports.%import_ref.7, element0 [symbolic]
+// CHECK:STDOUT:   %.15: %.14 = assoc_entity element0, imports.%import_ref.6 [template]
+// CHECK:STDOUT:   %.16: %.11 = assoc_entity element0, imports.%import_ref.7 [symbolic]
 // CHECK:STDOUT:   %Convert.type.3: type = fn_type @Convert.2 [template]
 // CHECK:STDOUT:   %Convert.3: %Convert.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.17: <witness> = interface_witness (%Convert.3) [template]
@@ -316,7 +316,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %Convert.type.5: type = fn_type @Convert.1, @ImplicitAs(%D) [template]
 // CHECK:STDOUT:   %Convert.5: %Convert.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.20: type = assoc_entity_type %ImplicitAs.type.4, %Convert.type.5 [template]
-// CHECK:STDOUT:   %.21: %.20 = assoc_entity imports.%import_ref.6, element0 [template]
+// CHECK:STDOUT:   %.21: %.20 = assoc_entity element0, imports.%import_ref.6 [template]
 // CHECK:STDOUT:   %.22: %ImplicitAs.type.2 = facet_value %C.3, %C.3 [symbolic]
 // CHECK:STDOUT:   %.23: <witness> = interface_witness (%Convert.4) [template]
 // CHECK:STDOUT:   %.25: Core.IntLiteral = int_value 1 [template]
@@ -545,7 +545,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%T) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.11)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.11) = assoc_entity imports.%import_ref.6, element0 [symbolic = %.2 (constants.%.12)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.11) = assoc_entity element0, imports.%import_ref.6 [symbolic = %.2 (constants.%.12)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -1056,14 +1056,14 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.9: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.10: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.11: %.10 = assoc_entity imports.%import_ref.14, element0 [symbolic]
+// CHECK:STDOUT:   %.11: %.10 = assoc_entity element0, imports.%import_ref.14 [symbolic]
 // CHECK:STDOUT:   %.12: type = facet_access_type %Self.1 [symbolic]
 // CHECK:STDOUT:   %ImplicitAs.type.3: type = facet_type <@ImplicitAs, @ImplicitAs(%i32)> [template]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [template]
 // CHECK:STDOUT:   %.13: type = assoc_entity_type %ImplicitAs.type.3, %Convert.type.2 [template]
-// CHECK:STDOUT:   %.14: %.13 = assoc_entity imports.%import_ref.14, element0 [template]
-// CHECK:STDOUT:   %.15: %.10 = assoc_entity imports.%import_ref.15, element0 [symbolic]
+// CHECK:STDOUT:   %.14: %.13 = assoc_entity element0, imports.%import_ref.14 [template]
+// CHECK:STDOUT:   %.15: %.10 = assoc_entity element0, imports.%import_ref.15 [symbolic]
 // CHECK:STDOUT:   %Convert.type.3: type = fn_type @Convert.2 [template]
 // CHECK:STDOUT:   %Convert.3: %Convert.type.3 = struct_value () [template]
 // CHECK:STDOUT:   %.16: <witness> = interface_witness (%Convert.3) [template]
@@ -1075,7 +1075,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %Convert.type.4: type = fn_type @Convert.1, @ImplicitAs(%D) [template]
 // CHECK:STDOUT:   %Convert.4: %Convert.type.4 = struct_value () [template]
 // CHECK:STDOUT:   %.20: type = assoc_entity_type %ImplicitAs.type.4, %Convert.type.4 [template]
-// CHECK:STDOUT:   %.21: %.20 = assoc_entity imports.%import_ref.14, element0 [template]
+// CHECK:STDOUT:   %.21: %.20 = assoc_entity element0, imports.%import_ref.14 [template]
 // CHECK:STDOUT:   %.22: %i32 = int_value 1 [template]
 // CHECK:STDOUT:   %C.4: type = class_type @C, @C(%.22) [template]
 // CHECK:STDOUT:   %.23: %i32 = int_value 2 [template]
@@ -1230,7 +1230,7 @@ fn F0(n: i32) -> P.D {
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%T) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.10)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.10) = assoc_entity imports.%import_ref.14, element0 [symbolic = %.2 (constants.%.11)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.10) = assoc_entity element0, imports.%import_ref.14 [symbolic = %.2 (constants.%.11)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
diff --git a/toolchain/check/testdata/struct/import.carbon b/toolchain/check/testdata/struct/import.carbon
index bb804b4459a35..c25e6b79aecf8 100644
--- a/toolchain/check/testdata/struct/import.carbon
+++ b/toolchain/check/testdata/struct/import.carbon
@@ -282,7 +282,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity imports.%import_ref.11, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, imports.%import_ref.11 [symbolic]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.2, @impl.1(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.4: <witness> = interface_witness (%Convert.2) [symbolic]
@@ -299,7 +299,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type.5: type = fn_type @Convert.1, @ImplicitAs(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.5: %Convert.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %ImplicitAs.type.5, %Convert.type.5 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity imports.%import_ref.18, element0 [template]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.18 [template]
 // CHECK:STDOUT:   %Convert.type.6: type = fn_type @Convert.5, @impl.4(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.6: %Convert.type.6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.10: <witness> = interface_witness (%Convert.6) [symbolic]
@@ -311,7 +311,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.7: %Convert.type.7 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.11: type = facet_access_type %Self.4 [symbolic]
 // CHECK:STDOUT:   %.12: type = assoc_entity_type %As.type.2, %Convert.type.7 [symbolic]
-// CHECK:STDOUT:   %.13: %.12 = assoc_entity imports.%import_ref.28, element0 [symbolic]
+// CHECK:STDOUT:   %.13: %.12 = assoc_entity element0, imports.%import_ref.28 [symbolic]
 // CHECK:STDOUT:   %Convert.type.8: type = fn_type @Convert.7, @impl.5(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.8: %Convert.type.8 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.14: <witness> = interface_witness (%Convert.8) [symbolic]
@@ -327,7 +327,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type.11: type = fn_type @Convert.6, @As(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.11: %Convert.type.11 = struct_value () [template]
 // CHECK:STDOUT:   %.18: type = assoc_entity_type %As.type.5, %Convert.type.11 [template]
-// CHECK:STDOUT:   %.19: %.18 = assoc_entity imports.%import_ref.35, element0 [template]
+// CHECK:STDOUT:   %.19: %.18 = assoc_entity element0, imports.%import_ref.35 [template]
 // CHECK:STDOUT:   %Convert.type.12: type = fn_type @Convert.10, @impl.8(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.12: %Convert.type.12 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.20: <witness> = interface_witness (%Convert.12) [symbolic]
@@ -354,8 +354,8 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type.13: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
 // CHECK:STDOUT:   %Convert.13: %Convert.type.13 = struct_value () [template]
 // CHECK:STDOUT:   %.35: type = assoc_entity_type %ImplicitAs.type.6, %Convert.type.13 [template]
-// CHECK:STDOUT:   %.36: %.35 = assoc_entity imports.%import_ref.11, element0 [template]
-// CHECK:STDOUT:   %.37: %.2 = assoc_entity imports.%import_ref.43, element0 [symbolic]
+// CHECK:STDOUT:   %.36: %.35 = assoc_entity element0, imports.%import_ref.11 [template]
+// CHECK:STDOUT:   %.37: %.2 = assoc_entity element0, imports.%import_ref.43 [symbolic]
 // CHECK:STDOUT:   %Convert.type.14: type = fn_type @Convert.2, @impl.1(%.21) [template]
 // CHECK:STDOUT:   %Convert.14: %Convert.type.14 = struct_value () [template]
 // CHECK:STDOUT:   %.38: <witness> = interface_witness (%Convert.14) [template]
@@ -490,7 +490,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.2)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity imports.%import_ref.11, element0 [symbolic = %.2 (constants.%.3)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity element0, imports.%import_ref.11 [symbolic = %.2 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -510,7 +510,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.6, @As(%Dest) [symbolic = %Convert.type (constants.%Convert.type.7)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.7) = struct_value () [symbolic = %Convert (constants.%Convert.7)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.7) [symbolic = %.1 (constants.%.12)]
-// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity imports.%import_ref.28, element0 [symbolic = %.2 (constants.%.13)]
+// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity element0, imports.%import_ref.28 [symbolic = %.2 (constants.%.13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -1109,7 +1109,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity imports.%import_ref.11, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, imports.%import_ref.11 [symbolic]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.2, @impl.1(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.4: <witness> = interface_witness (%Convert.2) [symbolic]
@@ -1126,7 +1126,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type.5: type = fn_type @Convert.1, @ImplicitAs(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.5: %Convert.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %ImplicitAs.type.5, %Convert.type.5 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity imports.%import_ref.18, element0 [template]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.18 [template]
 // CHECK:STDOUT:   %Convert.type.6: type = fn_type @Convert.5, @impl.4(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.6: %Convert.type.6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.10: <witness> = interface_witness (%Convert.6) [symbolic]
@@ -1138,7 +1138,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.7: %Convert.type.7 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.11: type = facet_access_type %Self.4 [symbolic]
 // CHECK:STDOUT:   %.12: type = assoc_entity_type %As.type.2, %Convert.type.7 [symbolic]
-// CHECK:STDOUT:   %.13: %.12 = assoc_entity imports.%import_ref.28, element0 [symbolic]
+// CHECK:STDOUT:   %.13: %.12 = assoc_entity element0, imports.%import_ref.28 [symbolic]
 // CHECK:STDOUT:   %Convert.type.8: type = fn_type @Convert.7, @impl.5(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.8: %Convert.type.8 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.14: <witness> = interface_witness (%Convert.8) [symbolic]
@@ -1154,7 +1154,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type.11: type = fn_type @Convert.6, @As(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.11: %Convert.type.11 = struct_value () [template]
 // CHECK:STDOUT:   %.18: type = assoc_entity_type %As.type.5, %Convert.type.11 [template]
-// CHECK:STDOUT:   %.19: %.18 = assoc_entity imports.%import_ref.35, element0 [template]
+// CHECK:STDOUT:   %.19: %.18 = assoc_entity element0, imports.%import_ref.35 [template]
 // CHECK:STDOUT:   %Convert.type.12: type = fn_type @Convert.10, @impl.8(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.12: %Convert.type.12 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.20: <witness> = interface_witness (%Convert.12) [symbolic]
@@ -1253,7 +1253,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.2)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity imports.%import_ref.11, element0 [symbolic = %.2 (constants.%.3)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity element0, imports.%import_ref.11 [symbolic = %.2 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -1273,7 +1273,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.6, @As(%Dest) [symbolic = %Convert.type (constants.%Convert.type.7)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.7) = struct_value () [symbolic = %Convert (constants.%Convert.7)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.7) [symbolic = %.1 (constants.%.12)]
-// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity imports.%import_ref.28, element0 [symbolic = %.2 (constants.%.13)]
+// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity element0, imports.%import_ref.28 [symbolic = %.2 (constants.%.13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -1811,7 +1811,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity imports.%import_ref.11, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, imports.%import_ref.11 [symbolic]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.2, @impl.1(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.4: <witness> = interface_witness (%Convert.2) [symbolic]
@@ -1828,7 +1828,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type.5: type = fn_type @Convert.1, @ImplicitAs(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.5: %Convert.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %ImplicitAs.type.5, %Convert.type.5 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity imports.%import_ref.18, element0 [template]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.18 [template]
 // CHECK:STDOUT:   %Convert.type.6: type = fn_type @Convert.5, @impl.4(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.6: %Convert.type.6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.10: <witness> = interface_witness (%Convert.6) [symbolic]
@@ -1840,7 +1840,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.7: %Convert.type.7 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.11: type = facet_access_type %Self.4 [symbolic]
 // CHECK:STDOUT:   %.12: type = assoc_entity_type %As.type.2, %Convert.type.7 [symbolic]
-// CHECK:STDOUT:   %.13: %.12 = assoc_entity imports.%import_ref.28, element0 [symbolic]
+// CHECK:STDOUT:   %.13: %.12 = assoc_entity element0, imports.%import_ref.28 [symbolic]
 // CHECK:STDOUT:   %Convert.type.8: type = fn_type @Convert.7, @impl.5(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.8: %Convert.type.8 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.14: <witness> = interface_witness (%Convert.8) [symbolic]
@@ -1856,7 +1856,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type.11: type = fn_type @Convert.6, @As(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.11: %Convert.type.11 = struct_value () [template]
 // CHECK:STDOUT:   %.18: type = assoc_entity_type %As.type.5, %Convert.type.11 [template]
-// CHECK:STDOUT:   %.19: %.18 = assoc_entity imports.%import_ref.35, element0 [template]
+// CHECK:STDOUT:   %.19: %.18 = assoc_entity element0, imports.%import_ref.35 [template]
 // CHECK:STDOUT:   %Convert.type.12: type = fn_type @Convert.10, @impl.8(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.12: %Convert.type.12 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.20: <witness> = interface_witness (%Convert.12) [symbolic]
@@ -1876,8 +1876,8 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type.13: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
 // CHECK:STDOUT:   %Convert.13: %Convert.type.13 = struct_value () [template]
 // CHECK:STDOUT:   %.29: type = assoc_entity_type %ImplicitAs.type.6, %Convert.type.13 [template]
-// CHECK:STDOUT:   %.30: %.29 = assoc_entity imports.%import_ref.11, element0 [template]
-// CHECK:STDOUT:   %.31: %.2 = assoc_entity imports.%import_ref.42, element0 [symbolic]
+// CHECK:STDOUT:   %.30: %.29 = assoc_entity element0, imports.%import_ref.11 [template]
+// CHECK:STDOUT:   %.31: %.2 = assoc_entity element0, imports.%import_ref.42 [symbolic]
 // CHECK:STDOUT:   %Convert.type.14: type = fn_type @Convert.2, @impl.1(%.23) [template]
 // CHECK:STDOUT:   %Convert.14: %Convert.type.14 = struct_value () [template]
 // CHECK:STDOUT:   %.32: <witness> = interface_witness (%Convert.14) [template]
@@ -1899,7 +1899,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type.15: type = fn_type @Convert.1, @ImplicitAs(%C.3) [template]
 // CHECK:STDOUT:   %Convert.15: %Convert.type.15 = struct_value () [template]
 // CHECK:STDOUT:   %.42: type = assoc_entity_type %ImplicitAs.type.7, %Convert.type.15 [template]
-// CHECK:STDOUT:   %.43: %.42 = assoc_entity imports.%import_ref.11, element0 [template]
+// CHECK:STDOUT:   %.43: %.42 = assoc_entity element0, imports.%import_ref.11 [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -1993,7 +1993,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.2)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity imports.%import_ref.11, element0 [symbolic = %.2 (constants.%.3)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity element0, imports.%import_ref.11 [symbolic = %.2 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -2013,7 +2013,7 @@ var c_bad: C({.a = 3, .b = 4}) = F();
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.6, @As(%Dest) [symbolic = %Convert.type (constants.%Convert.type.7)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.7) = struct_value () [symbolic = %Convert (constants.%Convert.7)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.7) [symbolic = %.1 (constants.%.12)]
-// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity imports.%import_ref.28, element0 [symbolic = %.2 (constants.%.13)]
+// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity element0, imports.%import_ref.28 [symbolic = %.2 (constants.%.13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
diff --git a/toolchain/check/testdata/tuple/import.carbon b/toolchain/check/testdata/tuple/import.carbon
index 557b16cda61a0..c25ef86b51b38 100644
--- a/toolchain/check/testdata/tuple/import.carbon
+++ b/toolchain/check/testdata/tuple/import.carbon
@@ -311,7 +311,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity imports.%import_ref.11, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, imports.%import_ref.11 [symbolic]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.2, @impl.1(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.4: <witness> = interface_witness (%Convert.2) [symbolic]
@@ -328,7 +328,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type.5: type = fn_type @Convert.1, @ImplicitAs(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.5: %Convert.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %ImplicitAs.type.5, %Convert.type.5 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity imports.%import_ref.18, element0 [template]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.18 [template]
 // CHECK:STDOUT:   %Convert.type.6: type = fn_type @Convert.5, @impl.4(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.6: %Convert.type.6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.10: <witness> = interface_witness (%Convert.6) [symbolic]
@@ -340,7 +340,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.7: %Convert.type.7 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.11: type = facet_access_type %Self.4 [symbolic]
 // CHECK:STDOUT:   %.12: type = assoc_entity_type %As.type.2, %Convert.type.7 [symbolic]
-// CHECK:STDOUT:   %.13: %.12 = assoc_entity imports.%import_ref.28, element0 [symbolic]
+// CHECK:STDOUT:   %.13: %.12 = assoc_entity element0, imports.%import_ref.28 [symbolic]
 // CHECK:STDOUT:   %Convert.type.8: type = fn_type @Convert.7, @impl.5(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.8: %Convert.type.8 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.14: <witness> = interface_witness (%Convert.8) [symbolic]
@@ -356,7 +356,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type.11: type = fn_type @Convert.6, @As(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.11: %Convert.type.11 = struct_value () [template]
 // CHECK:STDOUT:   %.18: type = assoc_entity_type %As.type.5, %Convert.type.11 [template]
-// CHECK:STDOUT:   %.19: %.18 = assoc_entity imports.%import_ref.35, element0 [template]
+// CHECK:STDOUT:   %.19: %.18 = assoc_entity element0, imports.%import_ref.35 [template]
 // CHECK:STDOUT:   %Convert.type.12: type = fn_type @Convert.10, @impl.8(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.12: %Convert.type.12 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.20: <witness> = interface_witness (%Convert.12) [symbolic]
@@ -385,8 +385,8 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type.13: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
 // CHECK:STDOUT:   %Convert.13: %Convert.type.13 = struct_value () [template]
 // CHECK:STDOUT:   %.29: type = assoc_entity_type %ImplicitAs.type.6, %Convert.type.13 [template]
-// CHECK:STDOUT:   %.30: %.29 = assoc_entity imports.%import_ref.11, element0 [template]
-// CHECK:STDOUT:   %.31: %.2 = assoc_entity imports.%import_ref.43, element0 [symbolic]
+// CHECK:STDOUT:   %.30: %.29 = assoc_entity element0, imports.%import_ref.11 [template]
+// CHECK:STDOUT:   %.31: %.2 = assoc_entity element0, imports.%import_ref.43 [symbolic]
 // CHECK:STDOUT:   %Convert.type.14: type = fn_type @Convert.2, @impl.1(%.21) [template]
 // CHECK:STDOUT:   %Convert.14: %Convert.type.14 = struct_value () [template]
 // CHECK:STDOUT:   %.32: <witness> = interface_witness (%Convert.14) [template]
@@ -530,7 +530,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.2)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity imports.%import_ref.11, element0 [symbolic = %.2 (constants.%.3)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity element0, imports.%import_ref.11 [symbolic = %.2 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -550,7 +550,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.6, @As(%Dest) [symbolic = %Convert.type (constants.%Convert.type.7)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.7) = struct_value () [symbolic = %Convert (constants.%Convert.7)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.7) [symbolic = %.1 (constants.%.12)]
-// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity imports.%import_ref.28, element0 [symbolic = %.2 (constants.%.13)]
+// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity element0, imports.%import_ref.28 [symbolic = %.2 (constants.%.13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -1157,7 +1157,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity imports.%import_ref.11, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, imports.%import_ref.11 [symbolic]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.2, @impl.1(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.4: <witness> = interface_witness (%Convert.2) [symbolic]
@@ -1174,7 +1174,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type.5: type = fn_type @Convert.1, @ImplicitAs(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.5: %Convert.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %ImplicitAs.type.5, %Convert.type.5 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity imports.%import_ref.18, element0 [template]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.18 [template]
 // CHECK:STDOUT:   %Convert.type.6: type = fn_type @Convert.5, @impl.4(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.6: %Convert.type.6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.10: <witness> = interface_witness (%Convert.6) [symbolic]
@@ -1186,7 +1186,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.7: %Convert.type.7 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.11: type = facet_access_type %Self.4 [symbolic]
 // CHECK:STDOUT:   %.12: type = assoc_entity_type %As.type.2, %Convert.type.7 [symbolic]
-// CHECK:STDOUT:   %.13: %.12 = assoc_entity imports.%import_ref.28, element0 [symbolic]
+// CHECK:STDOUT:   %.13: %.12 = assoc_entity element0, imports.%import_ref.28 [symbolic]
 // CHECK:STDOUT:   %Convert.type.8: type = fn_type @Convert.7, @impl.5(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.8: %Convert.type.8 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.14: <witness> = interface_witness (%Convert.8) [symbolic]
@@ -1202,7 +1202,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type.11: type = fn_type @Convert.6, @As(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.11: %Convert.type.11 = struct_value () [template]
 // CHECK:STDOUT:   %.18: type = assoc_entity_type %As.type.5, %Convert.type.11 [template]
-// CHECK:STDOUT:   %.19: %.18 = assoc_entity imports.%import_ref.35, element0 [template]
+// CHECK:STDOUT:   %.19: %.18 = assoc_entity element0, imports.%import_ref.35 [template]
 // CHECK:STDOUT:   %Convert.type.12: type = fn_type @Convert.10, @impl.8(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.12: %Convert.type.12 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.20: <witness> = interface_witness (%Convert.12) [symbolic]
@@ -1303,7 +1303,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.2)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity imports.%import_ref.11, element0 [symbolic = %.2 (constants.%.3)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity element0, imports.%import_ref.11 [symbolic = %.2 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -1323,7 +1323,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.6, @As(%Dest) [symbolic = %Convert.type (constants.%Convert.type.7)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.7) = struct_value () [symbolic = %Convert (constants.%Convert.7)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.7) [symbolic = %.1 (constants.%.12)]
-// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity imports.%import_ref.28, element0 [symbolic = %.2 (constants.%.13)]
+// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity element0, imports.%import_ref.28 [symbolic = %.2 (constants.%.13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -1861,7 +1861,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.1: %Convert.type.1 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.1: type = facet_access_type %Self.2 [symbolic]
 // CHECK:STDOUT:   %.2: type = assoc_entity_type %ImplicitAs.type.2, %Convert.type.1 [symbolic]
-// CHECK:STDOUT:   %.3: %.2 = assoc_entity imports.%import_ref.11, element0 [symbolic]
+// CHECK:STDOUT:   %.3: %.2 = assoc_entity element0, imports.%import_ref.11 [symbolic]
 // CHECK:STDOUT:   %Convert.type.2: type = fn_type @Convert.2, @impl.1(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.2: %Convert.type.2 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.4: <witness> = interface_witness (%Convert.2) [symbolic]
@@ -1878,7 +1878,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type.5: type = fn_type @Convert.1, @ImplicitAs(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.5: %Convert.type.5 = struct_value () [template]
 // CHECK:STDOUT:   %.8: type = assoc_entity_type %ImplicitAs.type.5, %Convert.type.5 [template]
-// CHECK:STDOUT:   %.9: %.8 = assoc_entity imports.%import_ref.18, element0 [template]
+// CHECK:STDOUT:   %.9: %.8 = assoc_entity element0, imports.%import_ref.18 [template]
 // CHECK:STDOUT:   %Convert.type.6: type = fn_type @Convert.5, @impl.4(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.6: %Convert.type.6 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.10: <witness> = interface_witness (%Convert.6) [symbolic]
@@ -1890,7 +1890,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.7: %Convert.type.7 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.11: type = facet_access_type %Self.4 [symbolic]
 // CHECK:STDOUT:   %.12: type = assoc_entity_type %As.type.2, %Convert.type.7 [symbolic]
-// CHECK:STDOUT:   %.13: %.12 = assoc_entity imports.%import_ref.28, element0 [symbolic]
+// CHECK:STDOUT:   %.13: %.12 = assoc_entity element0, imports.%import_ref.28 [symbolic]
 // CHECK:STDOUT:   %Convert.type.8: type = fn_type @Convert.7, @impl.5(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.8: %Convert.type.8 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.14: <witness> = interface_witness (%Convert.8) [symbolic]
@@ -1906,7 +1906,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type.11: type = fn_type @Convert.6, @As(Core.IntLiteral) [template]
 // CHECK:STDOUT:   %Convert.11: %Convert.type.11 = struct_value () [template]
 // CHECK:STDOUT:   %.18: type = assoc_entity_type %As.type.5, %Convert.type.11 [template]
-// CHECK:STDOUT:   %.19: %.18 = assoc_entity imports.%import_ref.35, element0 [template]
+// CHECK:STDOUT:   %.19: %.18 = assoc_entity element0, imports.%import_ref.35 [template]
 // CHECK:STDOUT:   %Convert.type.12: type = fn_type @Convert.10, @impl.8(%N) [symbolic]
 // CHECK:STDOUT:   %Convert.12: %Convert.type.12 = struct_value () [symbolic]
 // CHECK:STDOUT:   %.20: <witness> = interface_witness (%Convert.12) [symbolic]
@@ -1926,8 +1926,8 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type.13: type = fn_type @Convert.1, @ImplicitAs(%i32) [template]
 // CHECK:STDOUT:   %Convert.13: %Convert.type.13 = struct_value () [template]
 // CHECK:STDOUT:   %.27: type = assoc_entity_type %ImplicitAs.type.6, %Convert.type.13 [template]
-// CHECK:STDOUT:   %.28: %.27 = assoc_entity imports.%import_ref.11, element0 [template]
-// CHECK:STDOUT:   %.29: %.2 = assoc_entity imports.%import_ref.42, element0 [symbolic]
+// CHECK:STDOUT:   %.28: %.27 = assoc_entity element0, imports.%import_ref.11 [template]
+// CHECK:STDOUT:   %.29: %.2 = assoc_entity element0, imports.%import_ref.42 [symbolic]
 // CHECK:STDOUT:   %Convert.type.14: type = fn_type @Convert.2, @impl.1(%.23) [template]
 // CHECK:STDOUT:   %Convert.14: %Convert.type.14 = struct_value () [template]
 // CHECK:STDOUT:   %.30: <witness> = interface_witness (%Convert.14) [template]
@@ -1949,7 +1949,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type.15: type = fn_type @Convert.1, @ImplicitAs(%C.3) [template]
 // CHECK:STDOUT:   %Convert.15: %Convert.type.15 = struct_value () [template]
 // CHECK:STDOUT:   %.40: type = assoc_entity_type %ImplicitAs.type.7, %Convert.type.15 [template]
-// CHECK:STDOUT:   %.41: %.40 = assoc_entity imports.%import_ref.11, element0 [template]
+// CHECK:STDOUT:   %.41: %.40 = assoc_entity element0, imports.%import_ref.11 [template]
 // CHECK:STDOUT: }
 // CHECK:STDOUT:
 // CHECK:STDOUT: imports {
@@ -2043,7 +2043,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.1, @ImplicitAs(%Dest) [symbolic = %Convert.type (constants.%Convert.type.1)]
 // CHECK:STDOUT:   %Convert: @ImplicitAs.%Convert.type (%Convert.type.1) = struct_value () [symbolic = %Convert (constants.%Convert.1)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @ImplicitAs.%ImplicitAs.type (%ImplicitAs.type.2), @ImplicitAs.%Convert.type (%Convert.type.1) [symbolic = %.1 (constants.%.2)]
-// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity imports.%import_ref.11, element0 [symbolic = %.2 (constants.%.3)]
+// CHECK:STDOUT:   %.2: @ImplicitAs.%.1 (%.2) = assoc_entity element0, imports.%import_ref.11 [symbolic = %.2 (constants.%.3)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
@@ -2063,7 +2063,7 @@ var c_bad: C((3, 4)) = F();
 // CHECK:STDOUT:   %Convert.type: type = fn_type @Convert.6, @As(%Dest) [symbolic = %Convert.type (constants.%Convert.type.7)]
 // CHECK:STDOUT:   %Convert: @As.%Convert.type (%Convert.type.7) = struct_value () [symbolic = %Convert (constants.%Convert.7)]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type @As.%As.type (%As.type.2), @As.%Convert.type (%Convert.type.7) [symbolic = %.1 (constants.%.12)]
-// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity imports.%import_ref.28, element0 [symbolic = %.2 (constants.%.13)]
+// CHECK:STDOUT:   %.2: @As.%.1 (%.12) = assoc_entity element0, imports.%import_ref.28 [symbolic = %.2 (constants.%.13)]
 // CHECK:STDOUT:
 // CHECK:STDOUT:   interface {
 // CHECK:STDOUT:   !members:
diff --git a/toolchain/check/testdata/where_expr/constraints.carbon b/toolchain/check/testdata/where_expr/constraints.carbon
index fa8e5ada48d8f..35be548f7144e 100644
--- a/toolchain/check/testdata/where_expr/constraints.carbon
+++ b/toolchain/check/testdata/where_expr/constraints.carbon
@@ -167,10 +167,10 @@ let B: type where .Self impls A = D;
 // CHECK:STDOUT:   %I.type.1: type = facet_type <@I> [template]
 // CHECK:STDOUT:   %Self.2: %I.type.1 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type.1, type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%Member, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%Member [template]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [template]
 // CHECK:STDOUT:   %.3: type = assoc_entity_type %I.type.1, %J.type.1 [template]
-// CHECK:STDOUT:   %.4: %.3 = assoc_entity @I.%Second, element1 [template]
+// CHECK:STDOUT:   %.4: %.3 = assoc_entity element1, @I.%Second [template]
 // CHECK:STDOUT:   %.Self.1: %I.type.1 = bind_symbolic_name .Self, 0 [symbolic]
 // CHECK:STDOUT:   %I.type.2: type = facet_type <@I where TODO> [template]
 // CHECK:STDOUT:   %U: %I.type.2 = bind_symbolic_name U, 0 [symbolic]
@@ -278,10 +278,10 @@ let B: type where .Self impls A = D;
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type.1 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.2]
 // CHECK:STDOUT:   %Member: type = assoc_const_decl Member [template]
-// CHECK:STDOUT:   %.loc7: %.1 = assoc_entity %Member, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc7: %.1 = assoc_entity element0, %Member [template = constants.%.2]
 // CHECK:STDOUT:   %J.ref: type = name_ref J, file.%J.decl [template = constants.%J.type.1]
 // CHECK:STDOUT:   %Second: %J.type.1 = assoc_const_decl Second [template]
-// CHECK:STDOUT:   %.loc8: %.3 = assoc_entity %Second, element1 [template = constants.%.4]
+// CHECK:STDOUT:   %.loc8: %.3 = assoc_entity element1, %Second [template = constants.%.4]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -332,7 +332,7 @@ let B: type where .Self impls A = D;
 // CHECK:STDOUT:   %N.type.1: type = facet_type <@N> [template]
 // CHECK:STDOUT:   %Self: %N.type.1 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %N.type.1, type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @N.%P, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @N.%P [template]
 // CHECK:STDOUT:   %.Self: %N.type.1 = bind_symbolic_name .Self, 0 [symbolic]
 // CHECK:STDOUT:   %.3: <witness> = facet_access_witness %.Self [symbolic]
 // CHECK:STDOUT:   %.4: type = interface_witness_access %.3, element0 [symbolic]
@@ -382,7 +382,7 @@ let B: type where .Self impls A = D;
 // CHECK:STDOUT: interface @N {
 // CHECK:STDOUT:   %Self: %N.type.1 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %P: type = assoc_const_decl P [template]
-// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity %P, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity element0, %P [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -412,7 +412,7 @@ let B: type where .Self impls A = D;
 // CHECK:STDOUT:   %K.type.1: type = facet_type <@K> [template]
 // CHECK:STDOUT:   %Self.3: %K.type.1 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %K.type.1, %L.type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @K.%Associated, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @K.%Associated [template]
 // CHECK:STDOUT:   %.Self: %K.type.1 = bind_symbolic_name .Self, 0 [symbolic]
 // CHECK:STDOUT:   %.3: <witness> = facet_access_witness %.Self [symbolic]
 // CHECK:STDOUT:   %.4: %L.type = interface_witness_access %.3, element0 [symbolic]
@@ -484,7 +484,7 @@ let B: type where .Self impls A = D;
 // CHECK:STDOUT:   %Self: %K.type.1 = bind_symbolic_name Self, 0 [symbolic = constants.%Self.3]
 // CHECK:STDOUT:   %L.ref: type = name_ref L, file.%L.decl [template = constants.%L.type]
 // CHECK:STDOUT:   %Associated: %L.type = assoc_const_decl Associated [template]
-// CHECK:STDOUT:   %.loc8: %.1 = assoc_entity %Associated, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc8: %.1 = assoc_entity element0, %Associated [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -510,7 +510,7 @@ let B: type where .Self impls A = D;
 // CHECK:STDOUT:   %I.type.1: type = facet_type <@I> [template]
 // CHECK:STDOUT:   %.Self: %I.type.1 = bind_symbolic_name .Self, 0 [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type.1, type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity imports.%import_ref.11, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, imports.%import_ref.11 [template]
 // CHECK:STDOUT:   %.3: <witness> = facet_access_witness %.Self [symbolic]
 // CHECK:STDOUT:   %.4: type = interface_witness_access %.3, element0 [symbolic]
 // CHECK:STDOUT:   %.5: Core.IntLiteral = int_value 2 [template]
diff --git a/toolchain/check/testdata/where_expr/designator.carbon b/toolchain/check/testdata/where_expr/designator.carbon
index 41b075cdf87ae..5be359271cf5a 100644
--- a/toolchain/check/testdata/where_expr/designator.carbon
+++ b/toolchain/check/testdata/where_expr/designator.carbon
@@ -92,7 +92,7 @@ class D {
 // CHECK:STDOUT:   %I.type.1: type = facet_type <@I> [template]
 // CHECK:STDOUT:   %Self: %I.type.1 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type.1, type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%Member, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%Member [template]
 // CHECK:STDOUT:   %.Self.1: %I.type.1 = bind_symbolic_name .Self, 0 [symbolic]
 // CHECK:STDOUT:   %empty_tuple.type: type = tuple_type () [template]
 // CHECK:STDOUT:   %I.type.2: type = facet_type <@I where TODO> [template]
@@ -181,7 +181,7 @@ class D {
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type.1 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %Member: type = assoc_const_decl Member [template]
-// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity %Member, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity element0, %Member [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
@@ -231,7 +231,7 @@ class D {
 // CHECK:STDOUT:   %J.type.1: type = facet_type <@J> [template]
 // CHECK:STDOUT:   %Self: %J.type.1 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %J.type.1, type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @J.%Member, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @J.%Member [template]
 // CHECK:STDOUT:   %.Self: %J.type.1 = bind_symbolic_name .Self, 0 [symbolic]
 // CHECK:STDOUT:   %.3: type = struct_type {} [template]
 // CHECK:STDOUT:   %J.type.2: type = facet_type <@J where TODO> [template]
@@ -276,7 +276,7 @@ class D {
 // CHECK:STDOUT: interface @J {
 // CHECK:STDOUT:   %Self: %J.type.1 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %Member: type = assoc_const_decl Member [template]
-// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity %Member, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc5: %.1 = assoc_entity element0, %Member [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/check/testdata/where_expr/non_generic.carbon b/toolchain/check/testdata/where_expr/non_generic.carbon
index ad09115896450..421885f053077 100644
--- a/toolchain/check/testdata/where_expr/non_generic.carbon
+++ b/toolchain/check/testdata/where_expr/non_generic.carbon
@@ -19,7 +19,7 @@ fn NotGenericF(U: I where .T == i32) {}
 // CHECK:STDOUT:   %I.type.1: type = facet_type <@I> [template]
 // CHECK:STDOUT:   %Self: %I.type.1 = bind_symbolic_name Self, 0 [symbolic]
 // CHECK:STDOUT:   %.1: type = assoc_entity_type %I.type.1, type [template]
-// CHECK:STDOUT:   %.2: %.1 = assoc_entity @I.%T, element0 [template]
+// CHECK:STDOUT:   %.2: %.1 = assoc_entity element0, @I.%T [template]
 // CHECK:STDOUT:   %.Self: %I.type.1 = bind_symbolic_name .Self, 0 [symbolic]
 // CHECK:STDOUT:   %.3: <witness> = facet_access_witness %.Self [symbolic]
 // CHECK:STDOUT:   %.4: type = interface_witness_access %.3, element0 [symbolic]
@@ -71,7 +71,7 @@ fn NotGenericF(U: I where .T == i32) {}
 // CHECK:STDOUT: interface @I {
 // CHECK:STDOUT:   %Self: %I.type.1 = bind_symbolic_name Self, 0 [symbolic = constants.%Self]
 // CHECK:STDOUT:   %T: type = assoc_const_decl T [template]
-// CHECK:STDOUT:   %.loc11: %.1 = assoc_entity %T, element0 [template = constants.%.2]
+// CHECK:STDOUT:   %.loc11: %.1 = assoc_entity element0, %T [template = constants.%.2]
 // CHECK:STDOUT:
 // CHECK:STDOUT: !members:
 // CHECK:STDOUT:   .Self = %Self
diff --git a/toolchain/sem_ir/typed_insts.h b/toolchain/sem_ir/typed_insts.h
index 6d2f0c1bf89b9..73469dd6e0341 100644
--- a/toolchain/sem_ir/typed_insts.h
+++ b/toolchain/sem_ir/typed_insts.h
@@ -232,8 +232,8 @@ struct AssociatedEntity {
 
   // The type of the associated entity. This is an AssociatedEntityType.
   TypeId type_id;
-  AbsoluteInstId decl_id;
   ElementIndex index;
+  AbsoluteInstId decl_id;
 };
 
 // The type of an expression that names an associated entity, such as