Fire unload clip event when a movie clip is removed. Added
`ActionType` enum used by `ActionQueue::queue_actions` that
determines the type of action that is running (replaces `is_init`
parameter).
DisplayObject code no longer has to manage
UpdateContext::active_clip before calling out to children, because
each child still has access to its Gc pointer.
Note that host objects that do so will *not* have access to their standard representation from within member functions - you will need to extend the interface to accomodate for them. This is due to long-standing limitations with type IDs and downcasting with types that bear lifetimes - it's entirely an unsafe operation and exposing such a facility to safe Rust is unsound. However, this will at least let us separate out several things from ScriptObject that don't need to be there for the time being.
Generally there is one SoundStreamBlock per frame in a MovieClip.
However, if there are gaps between stream sounds, the stream must
stop and then pick up when the next block is encountered.
TODO: Sometimes Flash will do weird stuff and export a stream that
is plainly out of sync if there are gaps between sounds (the old
trick was to put a silent stream across the entire timeline to fix
this). This happens when the streams are too close together with
MP3 encoding. Investigate this more.
This pushes an extra `undefined` onto the stack to fix underflow in AS2 interface declarations.
It is currently unknown if this is a miscompilation or if some other value is supposed to be there.
# Conflicts:
# core/src/avm1.rs
# core/src/avm1/object.rs
Goto forward that did a replace was not replacing the previous child.
TODO: Figure out how to write a regression test for this; will
need a special test harness probably because this only happens with
Graphics, not MovieClips, so we can't attach AS to them to get
trace output.
Mike Welsh