[libcxx-commits] [libcxx] [libc++] Fix UB in <expected> related to "has value" flag (#68552) (PR #68733)

[Jan Kokemüller via libcxx-commits]

jiixyj wrote:

@ldionne : I think I addressed all review comments -- thanks again to all reviewers! I have added some "TailClobberer" tests for `swap()` now as well.

@huixie90 : There is an unresolved conversation/comment from you [here](<https://github.com/llvm/llvm-project/pull/68733#discussion_r1374248982>) about the design of the "TailClobberer" class. Do you think we can leave it like it is in this PR and do further test refactoring, if needed, in followup PRs?

https://github.com/llvm/llvm-project/pull/68733