https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62314
--- Comment #4 from David Malcolm <dmalcolm at gcc dot gnu.org> --- I've committed support for fix-it hints within diagnostics to trunk (for gcc 6) as r230674 (along with one trivial example of a fix-it hint in the C frontend). Keeping this bug open, since it has lots of examples of fix-it hints that we could provide.
