return ( exp ); 
return ( exp ); 
function LeftShift( s, a ) {    var shift = ToInt32( s );    var add = ToUint32( a );    add = Mask( add, 5 );    var exp = LShift( shift, add );    return ( exp );}
5459	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/5459/3703c3c05f398a63e55992f7687ef65273b26d6a/11.7.1.js/clean/js/tests/ecma/Expressions/11.7.1.js