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

[Aaron Ballman via cfe-commits]

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@@ -1524,6 +1524,10 @@ in addition with the pragmas or -fmax-tokens flag to get any warnings.
 }];
 }
 
+// Warning group for type aware allocators
+def TypeAwareAllocatorMismatch :
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AaronBallman wrote:

Do you expect to add more warnings under this group? If not, I'd suggest defining the group inline with the only warning using it.

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