Experimental parser: merge to r19637

test/mjsunit/regress/regress-fast-empty-string.js

Index: test/mjsunit/regress/regress-fast-empty-string.js
diff --git a/test/mjsunit/regress/regress-fast-empty-string.js b/test/mjsunit/regress/regress-fast-empty-string.js
new file mode 100644
index 0000000000000000000000000000000000000000..9b9fea963a4f7f094283ce5b42289127cb7f594d
--- /dev/null
+++ b/test/mjsunit/regress/regress-fast-empty-string.js
@@ -0,0 +1,13 @@
+// Copyright 2014 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.
+
+var o = {};
+o[""] = 1;
+var x = {__proto__:o};
+for (i = 0; i < 3; i++) {
+  o[""];
+}
+for (i = 0; i < 3; i++) {
+  assertEquals(undefined, o.x);
+}