[PATCH] D152632: [Clang] Add warnings for CWG2521

[Louis Dionne via Phabricator via cfe-commits]

ldionne added a comment.

This breaks libc++: https://buildkite.com/llvm-project/clang-ci/builds/26#01894b7d-8d6f-4893-ab14-1147229390dc

Doesn't mean don't land it, but please try to address the issues in this patch to keep everyone green.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D152632/new/

https://reviews.llvm.org/D152632