[gi-invoke-rewrite] backport glib error handling
[gi-invoke-rewrite] backport glib error handling

jdahlin/pygobject,davidmalcolm/pygobject,jdahlin/pygobject,MathieuDuponchelle/pygobject,thiblahute/pygobject,thiblahute/pygobject,pexip/pygobject,sfeltman/pygobject,GNOME/pygobject,sfeltman/pygobject,GNOME/pygobject,thiblahute/pygobject,pexip/pygobject,choeger/pygobject-cmake,sfeltman/pygobject,GNOME/pygobject,choeger/pygobject-cmake,davidmalcolm/pygobject,pexip/pygobject,davibe/pygobject,davibe/pygobject,davibe/pygobject,jdahlin/pygobject,davibe/pygobject,MathieuDuponchelle/pygobject,choeger/pygobject-cmake,MathieuDuponchelle/pygobject,davidmalcolm/pygobject