[clang] [llvm] [clang] Introduce target-specific `Sema` components (PR #93179)

[Erich Keane via cfe-commits]

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@@ -3548,6 +3561,56 @@ class Sema final : public SemaBase {
     BuiltinFunction
   };
 
+  /// A helper function to provide Attribute Location for the Attr types
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erichkeane wrote:

Is this comment right?  ParsedAttr will always call the non-template version below, right?

https://github.com/llvm/llvm-project/pull/93179