[clang] [Clang][Sema] Fix crash when diagnosing near-match for 'constexpr' redeclaration in C++11 (PR #92452)

[Krystian Stasiowski via cfe-commits]

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@@ -724,6 +724,8 @@ Bug Fixes to C++ Support
   templates during partial ordering when deducing template arguments from a function declaration or when
   taking the address of a function template.
 - Fix a bug with checking constrained non-type template parameters for equivalence. Fixes (#GH77377).
+- Fix a C++11 crash when a non-const non-static member function is defined out-of-line with
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sdkrystian wrote:

I looked, but couldn't find any

https://github.com/llvm/llvm-project/pull/92452