Summary: Current code emits warning for classes with constructors with parameters. It also creates the objects which is bad if constructors do some actual work. NOTE: http://svn.php.net/viewvc/phpdoc/en/trunk/reference/reflection/reflectionclass/issubclassof.xml?r1=324630&r2=324629 Test Plan: Run setup with: - correct classes - not-existing class - class with private constructor - class not implementing the required class Reviewers: epriestley Reviewed By: epriestley CC: aran, epriestley Differential Revision: https://secure.phabricator.com/D2056