rem: return 0;  
add: return 0;  
context: function tov_getRowCount (){    if (!this.childData)        return 0;        return this.childData.visualFootprint;}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/d38a0937d9c93a0a9d913e2ac781e4328bb8cc73/tree-utils.js/clean/extensions/venkman/resources/content/tree-utils.js