rem: function midnight(givenDate) 
add: function midnight(givenDate) 
context: function midnight(givenDate) {  // midnight on the given date -  return new Date(givenDate.getFullYear(), givenDate.getMonth(), givenDate.getDate());}
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/10234/3703c3c05f398a63e55992f7687ef65273b26d6a/15.9.5.3.js/clean/js/tests/ecma_3/Date/15.9.5.3.js