[libcxx-commits] [libcxx] [libc++] Move the locale support headers to __locale_dir/locale_base_api/ (PR #74522)

[Louis Dionne via libcxx-commits]

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

LGTM but you'll need to fix up a few include paths under `libcxx/src`, those are failing in the BuildKite CI builds.

https://github.com/llvm/llvm-project/pull/74522