Fix query types on maniphest fulltext search.

Summary:
Parameter `type` is not used anywhere. Instead param `types` is used.
Due this bug search was performed over whole index instead on tasks only.

Test Plan:
- Setup phabricator to run with Elasticsearch.
- Open http://yourphab.com/conduit/method/maniphest.query/
- Fill `fullText` field only.
- Expect get results. Query should be performed on `/phabricator/TASK/` only (not on whole `/phabricator/` index).

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D12542

src/applications/maniphest/query/ManiphestTaskQuery.php

@@ -560,7 +560,8 @@ final class ManiphestTaskQuery extends PhabricatorCursorPagedPolicyAwareQuery {
     // NOTE: Setting this to something larger than 2^53 will raise errors in
     // ElasticSearch, and billions of results won't fit in memory anyway.
     $fulltext_query->setParameter('limit', 100000);
-    $fulltext_query->setParameter('type', ManiphestTaskPHIDType::TYPECONST);
+    $fulltext_query->setParameter('types',
+      array(ManiphestTaskPHIDType::TYPECONST));
 
     $engine = PhabricatorSearchEngineSelector::newSelector()->newEngine();
     $fulltext_results = $engine->executeSearch($fulltext_query);