[libcxx-commits] [libcxx] [libc++] Enable C++ stdatomic.h for all C++ versions (PR #95498)

[Louis Dionne via libcxx-commits]

ldionne wrote:

IMO that's too close to a "new feature" for cherry-picking. It's unfortunate that we missed the branch by a bit, but I think it would make more sense to leave this for LLVM 20.

https://github.com/llvm/llvm-project/pull/95498