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-5174.js b/test/mjsunit/regress/regress-5174.js
new file mode 100644
index 0000000..390d24e
--- /dev/null
+++ b/test/mjsunit/regress/regress-5174.js
@@ -0,0 +1,6 @@
+// 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.
+
+assertEquals([], Object.keys(new Proxy([], {})));
+assertEquals([], Object.keys(new Proxy(/regex/, {})));