[clang] [libcxx] [llvm] Reapply "[Clang] Implement resolution for CWG1835 (#92957)" (PR #98547)

[Matheus Izvekov via cfe-commits]

mizvekov wrote:

Another option would be to apply the resolution to all modes, but recover and issue a warning instead of an error.
How feasible would that be?

https://github.com/llvm/llvm-project/pull/98547