Fix errors found by PHPStan

Test Plan: Ran `phpstan analyze -a autoload.php phabricator/src`.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: Korvin, hach-que

Differential Revision: https://secure.phabricator.com/D17371

src/applications/project/controller/PhabricatorProjectMembersAddController.php

@@ -48,7 +48,7 @@ final class PhabricatorProjectMembersAddController
             '+' => array_fuse($member_phids),
           ));
 
-      $editor = id(new PhabricatorProjectTransactionEditor($project))
+      $editor = id(new PhabricatorProjectTransactionEditor())
         ->setActor($viewer)
         ->setContentSourceFromRequest($request)
         ->setContinueOnNoEffect(true)