https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120049
--- Comment #37 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> --- With this now pushed, I plan to backport to 15 in a few days. I also want to revise the langauge of the error messages to be clearer. This will wiggle on several existing test cases so I want it to be a separate patch.