Fix crash when calling type[Any] from dict.get()

Author: byteforge38

mypy/types.py

@@ -2331,7 +2331,7 @@ def is_kw_arg(self) -> bool:
 
     def is_type_obj(self) -> bool:
         return self.fallback.type.is_metaclass() and not isinstance(
-            get_proper_type(self.ret_type), UninhabitedType
+            get_proper_type(self.ret_type), (UninhabitedType, AnyType)
         )
 
     def type_object(self) -> mypy.nodes.TypeInfo:

test-data/unit/check-classes.test

@@ -9398,3 +9398,10 @@ from typ import NT
 def f() -> NT:
     return NT(x='')
 [builtins fixtures/tuple.pyi]
+
+[case testCallingTypeAnyDoesNotCrash]
+# Regression test for https://github.com/python/mypy/issues/20585
+from typing import Any
+op: type[Any]
+reveal_type({0: object}.get(0, op)())  # N: Revealed type is "builtins.object"
+[builtins fixtures/dict.pyi]