rem: var a = new Array(1); a.x = a.unshift; a.x(1); 
add: var a = new Array(1); a.x = a.unshift; a.x(1); 
context: function x3() {	var a = new Array(1);	a.x = a.unshift;	a.x(1);}
meta: 10520	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10520/0b675418ba636127763e94e614e62364d6caa659/regress-315509-02.js/buggy/js/tests/js1_5/extensions/regress-315509-02.js