[clang] [Clang] Correctly diagnose a static function overloading a non-static function (PR #93460)

[Younan Zhang via cfe-commits]

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@@ -797,6 +797,8 @@ Bug Fixes to C++ Support
   in dependent contexts. Fixes (#GH92680).
 - Fixed a crash when diagnosing failed conversions involving template parameter
   packs. (#GH93076)
+- Fixed a regression introduced in Clang 18 causing a static function overloading a non-static function
+  with the same parameters not to be diagnosed. (Fixes #93456).
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zyn0217 wrote:

(#GH93456)

https://github.com/llvm/llvm-project/pull/93460