[Bug c++/88335] Implement P1073R3, C++20 immediate functions (consteval).

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88335

--- Comment #8 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Work has been restarted, we should have this feature fairly soon.  Certainly
the plan is to have it in GCC 10.