[clang] [Clang][Sema]:Fix musttail attribute on a function with not_tail_called attribute has no warning/error (PR #134465)

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MillePlateaux wrote:

 @AaronBallman @erichkeane It was not easy for me,thank you both! I hope to keep learning from you in the future.

https://github.com/llvm/llvm-project/pull/134465