Fixed bug #66176 (Invalid constant substitution)
Merge branch 'opcache' of ../php5.5

* 'opcache' of ../php5.5:
  Fixed bug #66176 (Invalid constant substitution)
Fixed bug #66176 (Invalid constant substitution)
Merge branch 'opcache' of ../php5.5

* 'opcache' of ../php5.5:
  Fixed bug #66176 (Invalid constant substitution)