[libcxx-commits] [clang] [clang-tools-extra] [libcxx] [C++17] Support __GCC_[CON|DE]STRUCTIVE_SIZE (PR #89446)

[Aaron Ballman via libcxx-commits]

AaronBallman wrote:

I think this resolves all the outstanding issues. I plan to land these changes sometime today unless I hear otherwise (we can also address additional concerns post-commit).

https://github.com/llvm/llvm-project/pull/89446