[Bug c++/119497] Improve diagnostic for failed assert(expr) in constexpr context

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119497

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #2)
> And suppress any mention of __assert_fail, __assert_rtn etc. which are not

s/which are not/which are/

> meant to be implementation details of assert.