Revert "SERVER-50442 Remove ensureIndex shell function This commit also replaces all the usages of ensureIndex() with createIndex() in JS tests and JS shell"

This reverts commit e69c967ff8b53634770438dfe9a5c7d13548351b.

1 files changed, 2 insertions, 2 deletions

diff --git a/jstests/core/finda.js b/jstests/core/finda.js
index 1525c7aaeda..0f59c4c7f3b 100644
--- a/jstests/core/finda.js
+++ b/jstests/core/finda.js
@@ -11,7 +11,7 @@ t.drop();
 numDocs = 200;
 
 function clearQueryPlanCache() {
-    t.createIndex({c: 1});
+    t.ensureIndex({c: 1});
     t.dropIndex({c: 1});
 }
 
@@ -92,7 +92,7 @@ function queryWithPlanTypes(withDups) {
     } else {
         t.save({_id: 0, a: 0, b: 0});
     }
-    t.createIndex({a: 1, _id: 1});  // Include _id for a covered index projection.
+    t.ensureIndex({a: 1, _id: 1});  // Include _id for a covered index projection.
 
     // All plans in order.
     checkCursorWithBatchSize({a: {$gte: 0}}, null, 150, 150);