[libcxx-commits] [libcxx] [libc++][hardening] Add iterator validity checks on unordered containers (PR #80230)

[Louis Dionne via libcxx-commits]

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

It's really nice to be able to re-enable these debug checks without a bunch of complicated machinery!

https://github.com/llvm/llvm-project/pull/80230