[clang] [RFC] Initial implementation of P2719 (PR #113510)

[Oliver Hunt via cfe-commits]

================
@@ -307,6 +307,10 @@ EXTENSION(datasizeof, LangOpts.CPlusPlus)
 
 FEATURE(cxx_abi_relative_vtable, LangOpts.CPlusPlus && LangOpts.RelativeCXXABIVTables)
 
+// Type aware allocators
+FEATURE(cxx_type_aware_allocators, LangOpts.TypeAwareAllocators)
----------------
ojhunt wrote:

Removed the feature test

https://github.com/llvm/llvm-project/pull/113510