[Bug d/87865] gdc doesn't build unless assert is marked noreturn

[ibuclaw at gdcproject dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87865

--- Comment #1 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
This is part of the dmd frontend which as no interaction with gcc.  So
gcc_unreachable() can't be used here.

Sounds like some independent compatibility layer is required here instead.