[libcxx-commits] [libcxx] [libc++] Verifies std::forward_like's mandates clause. (PR #127318)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 requested changes to this pull request.

Can't we test all of this with SFINAE tests instead?

https://github.com/llvm/llvm-project/pull/127318