Add missing multi_ptr aliases for access::address_space::generic

Add `[decorated_|raw_]generic_ptr` aliases definitions.

These aliases were previously mentioned in the
text (https://github.com/KhronosGroup/SYCL-Docs/blob/d314fbc9aead30704dd1f4d35db4b55b93bce7b0/adoc/chapters/architecture.adoc?plain=1#L1021),
but their definitions were missing where their homologous are defined.

Signed-off-by: Victor Perez <[email protected]>

adoc/config/rouge/lib/rouge/lexers/sycl.rb

@@ -312,6 +312,7 @@ class Sycl < Cpp
         context_bound
         cpu_selector
         decorated_constant_ptr
+        decorated_generic_ptr
         decorated_global_ptr
         decorated_local_ptr
         decorated_private_ptr

adoc/headers/pointer.h

@@ -30,6 +30,11 @@ template <typename ElementType,
 using private_ptr =
     multi_ptr<ElementType, access::address_space::private_space, IsDecorated>;
 
+template <typename ElementType,
+          access::decorated IsDecorated = access::decorated::legacy>
+using generic_ptr =
+    multi_ptr<ElementType, access::address_space::generic_space, IsDecorated>;
+
 // Template specialization aliases for different pointer address spaces.
 // The interface exposes non-decorated pointer while keeping the
 // address space information internally.
@@ -48,6 +53,11 @@ using raw_private_ptr =
     multi_ptr<ElementType, access::address_space::private_space,
               access::decorated::no>;
 
+template <typename ElementType>
+using raw_generic_ptr =
+    multi_ptr<ElementType, access::address_space::generic_space,
+              access::decorated::no>;
+
 // Template specialization aliases for different pointer address spaces.
 // The interface exposes decorated pointer.
 
@@ -66,4 +76,9 @@ using decorated_private_ptr =
     multi_ptr<ElementType, access::address_space::private_space,
               access::decorated::yes>;
 
+template <typename ElementType>
+using decorated_generic_ptr =
+    multi_ptr<ElementType, access::address_space::generic_space,
+              access::decorated::yes>;
+
 } // namespace sycl