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

[Aaron Ballman via libcxx-commits]

AaronBallman wrote:

CC @compnerd @MaskRay who may have more experience with visibility and library boundaries than I do.

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