rem: return a ^ b; 
add: return a ^ b; 
context: function XOr( a, b ) {    return a ^ b;}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/8395/3703c3c05f398a63e55992f7687ef65273b26d6a/tostring-2.js/buggy/js/tests/js1_2/function/tostring-2.js