[Bug c++/95298] [12/13 Regression] sorry, unimplemented: mangling record_type

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95298

--- Comment #12 from Jason Merrill <jason at gcc dot gnu.org> ---
I'm reluctant to backport mangling fixes, and the PR says this was broken as
far back as GCC 7, so I lean toward not backporting.