[Bug c++/127321] -Wsfinae-incomplete not reverted by `#pragma GCC diagnostic pop`

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=127321

--- Comment #1 from Drea Pinski <pinskia at gcc dot gnu.org> ---
I think it is the sharing of decltype([]{}) which is causing the issue rather
than pragma GCC diagnostic issue.