rem: var tmp = str; str = null; return tmp; } 
add: var tmp = str; str = null; return tmp; } 
context:         toString: function() {                var tmp = str;                str = null;                return tmp;        }
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10234/6d8f8110d71651dc093ebc1c292807a588de292f/regress-313938.js/buggy/js/tests/js1_5/extensions/regress-313938.js