https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77489
--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> --- (In reply to Markus Trippelsdorf from comment #2) > Untested patch: This looks good, except that the mangling change needs to depend on -fabi-version, and in the demangling change open braces go on a new line. And we'll want tests for both changes.