[clang] [clang] Catch missing format attributes (PR #70024)

[Aaron Ballman via cfe-commits]

================
@@ -10615,6 +10615,8 @@ class Sema final {
     ChangedStateAtExit
   };
 
+  void DiagnoseMissingFormatAttributes(NamedDecl *FDecl, SourceLocation Loc);
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AaronBallman wrote:

```suggestion
  void DiagnoseMissingFormatAttributes(const NamedDecl *FDecl, SourceLocation Loc);
```
(If we can't add the `const` here because it's viral for some reason, then I don't insist on this change.)

https://github.com/llvm/llvm-project/pull/70024