When collecting used_types only take the crate name for external ones
When collecting used_types only take the crate name for external ones

Is this too hacky?

GuillaumeGomez/gir,GuillaumeGomez/gir,insanebits/gir,gtk-rs/gir,GuillaumeGomez/gir,EPashkin/gir,gtk-rs/gir,gtk-rs/gir,EPashkin/gir,gkoz/gir,gkoz/gir,insanebits/gir