[clang] [Clang] strengthen checks for 'main' function to meet [basic.start.main] p2 requirements (PR #101853)

[via cfe-commits]

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@@ -3585,8 +3585,9 @@ class Sema final : public SemaBase {
   /// \param OldT The portion of the type of the old declaration to check.
   bool canFullyTypeCheckRedeclaration(ValueDecl *NewD, ValueDecl *OldD,
                                       QualType NewT, QualType OldT);
-  void CheckMain(FunctionDecl *FD, const DeclSpec &D);
+  void CheckMain(FunctionDecl *FD, DeclContext *DC, const DeclSpec &D);
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Sirraide wrote:

You can get the decl context from the function decl, so I don’t think this change is necessary.

https://github.com/llvm/llvm-project/pull/101853