Merge V8 5.3.332.45.  DO NOT MERGE

Test: Manual

FPIIM-449

Change-Id: Id3254828b068abdea3cb10442e0172a8c9a98e03
(cherry picked from commit 13e2dadd00298019ed862f2b2fc5068bba730bcf)
diff --git a/test/mjsunit/es6/debug-stepin-generators.js b/test/mjsunit/es6/debug-stepin-generators.js
index 081dfb7..6e548b4 100644
--- a/test/mjsunit/es6/debug-stepin-generators.js
+++ b/test/mjsunit/es6/debug-stepin-generators.js
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-// Flags: --expose-debug-as debug
+// Flags: --expose-debug-as debug --ignition-generators
 
 Debug = debug.Debug
 var exception = null;