Put inline comment anchors above the comments

Summary: See T955. We jump to an awkard place right now; jump above the comment instead.

Test Plan: Clicked inline comment anchor links.

Reviewers: Makinde, btrahan

Reviewed By: Makinde

CC: aran, epriestley

Maniphest Tasks: T955

Differential Revision: https://secure.phabricator.com/D2029

src/applications/differential/view/inlinecomment/DifferentialInlineCommentView.php

@@ -183,8 +183,9 @@ final class DifferentialInlineCommentView extends AphrontView {
     $anchor = phutil_render_tag(
       'a',
       array(
-        'name' => $anchor_name,
-        'id'   => $anchor_name,
+        'name'    => $anchor_name,
+        'id'      => $anchor_name,
+        'class'   => 'differential-inline-comment-anchor',
       ),
       '');