[libcxx-commits] [libcxx] [libc++] Introduce ABI sensitive areas to avoid requiring _LIBCPP_HIDE_FROM_ABI everywhere (PR #131156)

[Louis Dionne via libcxx-commits]

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

This patch makes sense to me, but I'd like to see it again once the CI is green. I'd like to understand the issue with frozen C++03 headers. Please ping me once that's figured out and the patch can be landed once CI is green.

https://github.com/llvm/llvm-project/pull/131156