func (v *ListStore) MoveBefore(iter, position *TreeIter) {
	C.gtk_list_store_move_before(v.native(), iter.native(),
		position.native())
}
func (v *ListStore) MoveBefore(iter, position *TreeIter) {
	C.gtk_list_store_move_before(v.native(), iter.native(),
		position.native())
}
// MoveBefore() is a wrapper around gtk_list_store_move_before().