Rename "needReviewerStatus()" into "needReviewers()"

Summary: Ref T10967. The old name was because we had a `getReviewers()` tied to `needRelationships()`, rename this method to use a simpler and more clear name.

Test Plan: `grep`, browsed around.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T10967

Differential Revision: https://secure.phabricator.com/D17519

src/applications/diffusion/controller/DiffusionBrowseController.php

@@ -1765,7 +1765,7 @@ final class DiffusionBrowseController extends DiffusionController {
       ->withUpdatedEpochBetween($recent, null)
       ->setOrder(DifferentialRevisionQuery::ORDER_MODIFIED)
       ->setLimit(10)
-      ->needReviewerStatus(true)
+      ->needReviewers(true)
       ->needFlags(true)
       ->needDrafts(true)
       ->execute();