rem: return ( exp ); 
add: return ( exp ); 
context: function LeftShift( s, a ) {    var shift = ToInt32( s );    var add = ToUint32( a );    add = Mask( add, 5 );    var exp = LShift( shift, add );    return ( exp );}
meta: 10520	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10520/0b675418ba636127763e94e614e62364d6caa659/11.7.1.js/buggy/js/tests/ecma/Expressions/11.7.1.js