[libcxx-commits] [libcxx] [libc++] Reintroduce the removed std::char_traits specialization (PR #66153)

[Mark de Wever via libcxx-commits]

https://github.com/mordante approved this pull request.

LGTM, thanks for working on this.

Does this diagnostic now always show up for users when they use libc++ as a system library? (I don't consider that a blocker for this patch,)

https://github.com/llvm/llvm-project/pull/66153