CWG2807 (https://wg21.link/cwg2807): One part of the standard correctly said destructors can't be `consteval`, but another incorrectly said they can be. Clang diagnosed this in 9.0, for some reason started accepting it in 10.0, then went back to diagnosing in 11.0: https://godbolt.org/z/6sWTYT38M. I've marked it as implemented since 11.0. The issue that prompted the DR: #65665