Use Application PHIDs in Ponder

Summary: Ref T2715. Switch Ponder to the new IDs.

Test Plan: Ran `phid.lookup`; `phid.query`. Grepped for old constant

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2715

Differential Revision: https://secure.phabricator.com/D6554

src/applications/search/index/PhabricatorSearchAbstractDocument.php

@@ -20,7 +20,7 @@ final class PhabricatorSearchAbstractDocument {
       ManiphestPHIDTypeTask::TYPECONST => 'Maniphest Tasks',
       PhrictionPHIDTypeDocument::TYPECONST => 'Phriction Documents',
       PhabricatorPHIDConstants::PHID_TYPE_USER => 'Phabricator Users',
-      PhabricatorPHIDConstants::PHID_TYPE_QUES => 'Ponder Questions',
+      PonderPHIDTypeQuestion::TYPECONST => 'Ponder Questions',
     );
   }