[clang] [Clang] Implement resolution for CWG1835 (PR #92957)

[Krystian Stasiowski via cfe-commits]

sdkrystian wrote:

(this PR is by no means complete, but I would like feedback regarding the validity of my interpretation of the DR resolution and perhaps some guidance with how to best go about implementing it. The currently included implementation _works_, but I'm uncertain whether it's the best way of going about it).

https://github.com/llvm/llvm-project/pull/92957