[clang] Thread Safety Analysis: Support attributes on function pointers (PR #191187)

[Marco Elver via cfe-commits]

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@@ -436,10 +436,24 @@ static void checkAttrArgsAreCapabilityObjs(Sema &S, Decl *D,
   }
 }
 
+/// Checks that thread-safety attributes on variables or fields apply only to
+/// function pointer types.
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melver wrote:

As mentioned elsewhere, I'd say this is out of scope for now (documented) - just getting plain function pointers to work will be a major improvement and we don't need to tangle up this extra functionality in this PR.

https://github.com/llvm/llvm-project/pull/191187