[clang] [Clang] Fix warning for non std functions with name `infinity` (PR #123417)

[Amr Hesham via cfe-commits]

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@@ -8469,7 +8489,7 @@ void Sema::CheckInfNaNFunction(const CallExpr *Call,
     bool IsInfOrIsFinite =
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AmrDeveloper wrote:

I think it's better now, early return if there is no identifier and check `NoHonor.. `first before checking for function name

https://github.com/llvm/llvm-project/pull/123417