[libcxx-commits] [libcxx] [libc++] Add missing constructor for forward_list in C++11 (PR #204845)

[Louis Dionne via libcxx-commits]

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

That constructor was added in fb8297668f4b, as part of fixing https://wg21.link/LWG2210. It seems it should not have been gated with C++11 from the start since we apply LWG issues as DRs.

https://github.com/llvm/llvm-project/pull/204845