[Bug c/69558] [6 Regression] glib2 warning pragmas stopped working

[dmalcolm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69558

--- Comment #11 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
(In reply to David Malcolm from comment #10)
> The ultimate right fix (for both) may be to fix linemap_compare_locations to
> cope with macro locations.
...then again, Jakub's patch from comment #4 may be OK as a stopgap given we're
in stage 4.