本文编译后的补丁下载链接 http://download.csdn.net/source/1908278
多模块应用，每加载一个模块都会重复加载模块所使用的RSL，现在增加一个
private static var loadedRSLs:Dictionary = new Dictionary(); 来保存是否已加载
mx.core.RSLListLoader
////////////////////////////////////////////////////////////////////////////////
//
// ADOBE SYSTEMS INCORPORATED
// Copyright 2007 Adobe Systems Incorporated
// All Rights Reserved.
//
// NOTICE: Adobe permits you to use, modify, and distribute this file
// in accordance with the terms of the license agreement accompanying it.
// 修改SDK代码免费RSL重复加载，提升模块加载性能
//
////////////////////////////////////////////////////////////////////////////////
package mx.core
{
import flash.events.IEventDispatcher;
import flash.events.Event;
import flash.utils.Dictionary;
[ExcludeClass]
/**
* @private
* Utility class for loading a list of RSLs.
*
* <p>A list of cross-domain RSLs and a list of regular RSLs
* can be loaded using this utility.</p>
*/
public class RSLListLoader
{
//--------------------------------------------------------------------------
//
// Constructor
//
//--------------------------------------------------------------------------
/**
* Constructor.
*
* @param rslList Array of RSLs to load.
* Each entry in the array is of type RSLItem or CdRSLItem.
* The RSLs will be loaded from index 0 to the end of the array.
*/
public function RSLListLoader(rslList:Array)
{
super();
this.rslList = rslList;
}
//--------------------------------------------------------------------------
//
// Variables
//
//--------------------------------------------------------------------------
/**
* @private
* The index of the RSL being loaded.
*/
private var currentIndex:int = 0;
/**
* @private
* The list of
