AS3 :: Flex : Use Hamcrest To Test For Membership In An IList?

I'm using Flex 3.3, with hamcrest-as3 used to test for item membership in a list as part of my unit tests:

var myList: IList = new ArrayCollection(['a', 'b', 'c']).list;
assertThat(myList, hasItems('a', 'b', 'c'));

The problem is that apparently the IList class doesn't support for each iteration; for example, with the above list, this will not trace anything:

for each (var i: * in myList) { trace (i); }

However, tracing either an Array or an ArrayCollection containing the same data will work just fine.What I want to do is (without having to tear apart my existing IList-based interface) be able to treat an IList like an Array or an ArrayCollection for the purposes of testing, because that's what hamcrest does:

override public function matches(collection:Object):Boolean
{
for each (var item:Object in collection)
{

[code]....