[clang] [Clang][Sema] Implement approved resolution for CWG2858 (PR #88042)

[Krystian Stasiowski via cfe-commits]

sdkrystian wrote:

Could also get them from the CWG GitHub pages repository (https://github.com/cplusplus/CWG/tree/gh-pages/issues)... anyways, am I good to merge this?

https://github.com/llvm/llvm-project/pull/88042