https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110025
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Created attachment 55202 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55202&action=edit self contained testcase for testcase 2 No headers. -std=c++2b
