Woops, sorry, it appears that objects created using new Object syntax are sorted differently from objects created using literal...
var o:Object = new Object();
o.bar = "345";
o.foo = "123";
var result:Array = this.removeDuplicates(
[
{ foo:"123", bar:"345" },
{ foo:"123", bar:"345", foobar:"789" },
{ foo:"123", bar:"347" },
{ foo:"123", bar:345 },
{ bar:"345", foo:"123" }, o
]);
So, my code won't work in that case... well whoops...
