rem: get closedWindowData() { return this._closedWindows; 
add: get opaqueState() { return this._getCurrentState(); 
context:   get closedWindowData() {    return this._closedWindows;  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/6ed817b3a77cb7f7a09a3146174c899ef112b1bb/nsSessionStore.js/buggy/browser/components/sessionstore/src/nsSessionStore.js