rem: { if (appCore != null) { dump("Copying\n"); appCore.copy(); } else { dump("BrowserAppCore has not been created!\n"); } } 
add: { if (appCore != null) appCore.copy(); } 
context:   function BrowserCopy()  {    if (appCore != null) {	    dump("Copying\n");      appCore.copy();    } else {      dump("BrowserAppCore has not been created!\n");    }  }
meta: 5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5459/362103c7d399ff64883b7e6dadc7c07cfb693081/navigator.js/buggy/xpfe/browser/resources/content/navigator.js