Import Cobalt 13.102542

Change-Id: I6bda7b03a2e33edfd735efcb981e2a731696b90d
diff --git a/src/v8/test/webkit/dfg-arguments-osr-exit.js b/src/v8/test/webkit/dfg-arguments-osr-exit.js
new file mode 100644
index 0000000..c7a7d95
--- /dev/null
+++ b/src/v8/test/webkit/dfg-arguments-osr-exit.js
@@ -0,0 +1,56 @@
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1.  Redistributions of source code must retain the above copyright
+//     notice, this list of conditions and the following disclaimer.
+// 2.  Redistributions in binary form must reproduce the above copyright
+//     notice, this list of conditions and the following disclaimer in the
+//     documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+description(
+"Tests aliased uses of 'arguments' that require reification of the Arguments object on OSR exit."
+);
+
+function baz() {
+    return [variable];
+}
+
+function foo() {
+    var result = 0;
+    var a = arguments;
+    for (var i = 0; i < a.length; ++i) {
+        result += a[i];
+        result += baz()[0];
+    }
+    return result;
+}
+
+function bar(x) {
+    return foo(x);
+}
+
+var variable = 32;
+var expected = "74";
+
+for (var i = 0; i < 200; ++i) {
+    if (i == 150) {
+        variable = "32";
+        expected = "\"4232\"";
+    }
+
+    shouldBe("bar(42)", expected);
+}