make swfdec_movie_rect_local_to_global() work
make swfdec_movie_rect_local_to_global() work

It used to fail on rotated rectangles

freedesktop-unofficial-mirror/swfdec__swfdec,mltframework/swfdec,freedesktop-unofficial-mirror/swfdec__swfdec,freedesktop-unofficial-mirror/swfdec__swfdec,mltframework/swfdec