[Bug libstdc++/82522] std::map::insert(value_type &&) not selected

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82522

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
It was added by http://wg21.link/lwg2354 and we don't implement that yet.