[Bug c++/123812] [13/14/15/16 Regression] Sorry unimplemented: mangling offset_ref rather than a real error message

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123812

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Also note I found this while trying to figure out PR 123376.