Link to undisplayed inline comments

Summary:
We currently don't link to comments which aren't visible. Link to the
appropriate diff in a new window, indicating where the comment lives.

Test Plan: Clicked visible, not-so-visible comments.

Reviewers: btrahan, jungejason, davidreuss

Reviewed By: btrahan

CC: aran, btrahan, epriestley

Maniphest Tasks: T555, T449

Differential Revision: https://secure.phabricator.com/D1333

src/applications/differential/controller/revisionview/DifferentialRevisionViewController.php

@@ -210,6 +210,7 @@ class DifferentialRevisionViewController extends DifferentialController {
     $comment_view->setChangesets($all_changesets);
     $comment_view->setUser($user);
     $comment_view->setTargetDiff($target);
+    $comment_view->setVersusDiffID($diff_vs);
 
     $changeset_view = new DifferentialChangesetListView();
     $changeset_view->setChangesets($visible_changesets);