gi: Also handle types that do not have a named/defined ctype
gi: Also handle types that do not have a named/defined ctype

otherwise if a GObject has been defined on a union \(interesting case used in GdkEvent\) won't be taken into account

thiblahute/hotdoc,thiblahute/hotdoc,thiblahute/hotdoc,hotdoc/hotdoc,thiblahute/hotdoc,thiblahute/hotdoc,hotdoc/hotdoc,hotdoc/hotdoc,hotdoc/hotdoc,thiblahute/hotdoc,hotdoc/hotdoc,hotdoc/hotdoc