https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78948
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> --- During parsing, we call mark_used on the function to call, which in turn does instantiate_decl -> add_pending_template. So, shall we avoid calling mark_used from parser->in_discarded_stmt (we'd need to propagate that flag down to call.c), something different?
