Various introspection fixes
Mostly annotation fixes and a couple of new boxed GTypes to make the API usable by language bindings, and to reduce the number of warnings when generating the main Pango introspection data down to zero.
Mostly annotation fixes and a couple of new boxed GTypes to make the API usable by language bindings, and to reduce the number of warnings when generating the main Pango introspection data down to zero.