rem: return 0;  
add: return 0;  
context: function tov_getRowCount (){    if (!this.childData)        return 0;        return this.childData.visualFootprint;}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/07d96867f11683becf5e1a6ca5e64e6a9324c957/tree-utils.js/buggy/extensions/venkman/resources/content/tree-utils.js