[Bug libstdc++/51452] [DR 2116] is_nothrow_.*constructible bugs

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51452

--- Comment #18 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Related to https://cplusplus.github.io/CWG/issues/2886.html also.