Fixed bug #64370 (microtime(true) less than $_SERVER['REQUEST_TIME_FLOAT'])
Merge branch 'PHP-5.5'

* PHP-5.5:
  Fixed bug #64370 (microtime(true) less than $_SERVER['REQUEST_TIME_FLOAT'])
fixed the test
Merge branch 'PHP-5.5'

* PHP-5.5:
  fixed the test