[libcxx-commits] [libcxx] [libc++][tuple][utility] P2968R2: Make `std::ignore` a first-class object (PR #97401)

[Mark de Wever via libcxx-commits]

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

Thanks this basically LGTM. However I'd like to hear @ldionne's input on `_LIBCPP_HIDE_FROM_ABI` before you land this patch.

https://github.com/llvm/llvm-project/pull/97401