[TIMOB-3160] iOS: removeEventListener crashes when passed 'this'

Application crashes when you try to use 'this' in removeEventListener to remove an addEventListener who's function you are in.

This code sample if from the code example at http://developer.appcelerator.com/apidoc/mobile/latest/Titanium.UI.Animation-object"> http://developer.appcelerator.com/apidoc/mobile/latest/Titanium.UI....

var view = Titanium.UI.createView({
   backgroundColor:'red'
});
var animation = Titanium.UI.createAnimation();
animation.backgroundColor = 'black';
animation.duration = 1000;
animation.addEventListener('complete',function()
{
   animation.removeEventListener('complete',this);
   animation.backgroundColor = 'orange';
   view.animate(animation);
});
view.animate(animation);

tested with 1.5.1, 1.6.0RC1, iOS SDK 4.2

Associated Helpdesk Ticket

http://developer.appcelerator.com/helpdesk/view/73881">http://developer.appcelerator.com/helpdesk/view/73881