add: DEBUG.assert(DEBUG.is_array(chlist)); 
context: function _charlistToString(chlist) {  var str = "";  for (var i in chlist) {    str += chlist[i]  }  return str;}
meta: 3248	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3248/200e248bd46eb7d21a63f89022744bf8bc30b977/jslib.js/buggy/lib/js/jslib.js