[clang] [Clang] Minimal support for availability attributes on partial specializations (PR #138426)

[Erich Keane via cfe-commits]

================
@@ -2385,12 +2385,16 @@ class Sema final : public SemaBase {
   /// potential availability violations.
   sema::FunctionScopeInfo *getCurFunctionAvailabilityContext();
 
-  void DiagnoseAvailabilityOfDecl(NamedDecl *D, ArrayRef<SourceLocation> Locs,
-                                  const ObjCInterfaceDecl *UnknownObjCClass,
-                                  bool ObjCPropertyAccess,
-                                  bool AvoidPartialAvailabilityChecks = false,
-                                  ObjCInterfaceDecl *ClassReceiver = nullptr);
-
+  void DiagnoseAvailabilityOfDecl(
----------------
erichkeane wrote:

I tend to prefer overloads for this, can we do that instead?

https://github.com/llvm/llvm-project/pull/138426