rem: for (var i = 0; i < newArray.length; i++) this.push(newArray[i]); 
add: var pos = this.length; for (var i = 0; i < newArray.length; i++, pos++){ if (i in newArray) this[pos] = newArray[i]; } 
context: 	extend: function(newArray){		for (var i = 0; i < newArray.length; i++) this.push(newArray[i]);		return this;	},
meta: 7826	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7826/ad21ba136685cc9eebd3a9ca3fb5e53e7da86e2d/Array.js/buggy/Native/Array.js