2ed6290a40
gjs's D-Bus convenience explicitly expects a string representation of an interface, but the new convenience method to load an XML description from a resource introduced in commit f42d9df3e0 only returns a string when using gjs from the GNOME 3.30 release. We have so far managed to keep compatibility with the previous stable gjs release, so fix up the fallback code to cast to string. https://gitlab.gnome.org/GNOME/gnome-shell/issues/578