[libcxx-commits] [libcxx] [libc++] Fix strict aliasing violation for `deque::const_iterator` (PR #136067)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 requested changes to this pull request.

I don't think we can do this as-is. AFAICT this changes the type of `deque::const_iterator`, which is way too big of an ABI break.

https://github.com/llvm/llvm-project/pull/136067