rem: sourceFiles.push(sourceFile); 
add: if (FBTrace.DBG_SOURCEFILES) FBTrace.sysout("addSourceFilesByURL sourceFile for "+url+"="+sourceFile+"\n");  /*@explore*/ if (sourceFile) sourceFiles.push(sourceFile); 
context: this.addSourceFilesByURL = function(sourceFiles, sourceFilesByURL){    for (url in sourceFilesByURL)    {        if (FBTrace.DBG_SOURCEFILES)                                                                           /*@explore*/            FBTrace.sysout("addSourceFilesByURL Firebug.showAllSourceFiles:"+Firebug.showAllSourceFiles+" trying "+url+"\n");  /*@explore*/        if (Firebug.showAllSourceFiles || this.showThisSourceFile(url))        {            var sourceFile = sourceFilesByURL[url];            sourceFiles.push(sourceFile);     // will append, whether or not the map was overwritten        }    }};
meta: 7450	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7450/5968b58eccd8324b8e098b727bbac44782ce0a70/lib.js/clean/extension/content/firebug/lib.js