[Bug c++/78743] [6 Regression] g++ segfaults when printing warning for captured constexpr variable

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78743

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
That has been backported already, see r243382.