[Bug c++/89780] -Wpessimizing-move is too agressive with templates and recommends pessimization

[herring at lanl dot gov]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89780

--- Comment #3 from S. Davis Herring <herring at lanl dot gov> ---
Does this need to be language-version-dependent, given
https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2019/p1825r0.html (in
C++20) and
https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p2266r3.html (in
C++23)?