Provide revision status information via API all "differential.revision.search"

Summary: Ref T2543. Now that the integer status constants are banished to the internals, we can expose status information from "differential.revision.search".

Test Plan:
Searched for revisions.

{F5093873}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T2543

Differential Revision: https://secure.phabricator.com/D18400

src/applications/differential/constants/DifferentialRevisionStatus.php

@@ -32,6 +32,10 @@ final class DifferentialRevisionStatus extends Phobject {
     return idx($this->spec, 'color.tag', 'bluegrey');
   }
 
+  public function getANSIColor() {
+    return idx($this->spec, 'color.ansi');
+  }
+
   public function getDisplayName() {
     return idx($this->spec, 'name');
   }

src/applications/differential/storage/DifferentialRevision.php

@@ -897,13 +897,26 @@ final class DifferentialRevision extends DifferentialDAO
         ->setKey('authorPHID')
         ->setType('phid')
         ->setDescription(pht('Revision author PHID.')),
+      id(new PhabricatorConduitSearchFieldSpecification())
+        ->setKey('status')
+        ->setType('map<string, wild>')
+        ->setDescription(pht('Information about revision status.')),
     );
   }
 
   public function getFieldValuesForConduit() {
+    $status = $this->getStatusObject();
+    $status_info = array(
+      'value' => $status->getKey(),
+      'name' => $status->getDisplayName(),
+      'closed' => $status->isClosedStatus(),
+      'color.ansi' => $status->getANSIColor(),
+    );
+
     return array(
       'title' => $this->getTitle(),
       'authorPHID' => $this->getAuthorPHID(),
+      'status' => $status_info,
     );
   }