[Bug c++/86974] Support Clang's require_constant_initialization attribute

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86974

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
No because that also makes it const, i.e. immutable.

It's useful for non-const globals.