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/regress/regress-618657.js b/test/mjsunit/regress/regress-618657.js
new file mode 100644
index 0000000..2882cff
--- /dev/null
+++ b/test/mjsunit/regress/regress-618657.js
@@ -0,0 +1,14 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --ignition --ignition-generators --ignition-filter=-foo
+
+function* foo() { yield 42 }
+function* goo() { yield 42 }
+var f = foo();
+var g = goo();
+assertEquals(42, f.next().value);
+assertEquals(42, g.next().value);
+assertEquals(true, f.next().done);
+assertEquals(true, g.next().done);