protected property PHP_Depend_Code_Method::$parent

[manuelpichler]

All of a sudden my (by Sonar initiated) PHP_Depend exited with the subject as error. The pointer accompanied with it led to line 554 in ASTNode.php. Setting this to $node->setParent($this); did not result in the expected behavior, since the function setParent expects an ASTNodeI (Interface) as parameter instead of an ASTNode object. Not sure if the parameter of setParent should be the non-interface or if something else should be done to fix this problem.

[Synced from PivotalTracker: 'http://www.pivotaltracker.com/story/show/32189493']