[libcxx-commits] [libcxx] [libc++][hardening] Rework how the assertion handler can be overridden. (PR #77883)

[Louis Dionne via libcxx-commits]

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

LGTM w/ comments, once CI is green. It seems like the Windows CI is super backed up right now, I think it would be fine to merge without waiting for that signal. But if you do, let's keep an eye on the CI to make sure this doesn't fail.

https://github.com/llvm/llvm-project/pull/77883