Fix invalid array length check in TransitionElementsKindStub.

test/mjsunit/transition-elements-kind.js

Index: test/mjsunit/transition-elements-kind.js
diff --git a/test/mjsunit/transition-elements-kind.js b/test/mjsunit/transition-elements-kind.js
new file mode 100644
index 0000000000000000000000000000000000000000..ba05c950d98a1f0a490e2f3c1a123060e2f8fb50
--- /dev/null
+++ b/test/mjsunit/transition-elements-kind.js
@@ -0,0 +1,48 @@
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * 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.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+// OWNER OR 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.
+
+// Flags: --allow-natives-syntax --compiled-transitions
+// Flags: --track-allocation-sites
+
+// Allocation site for empty double arrays.
+function foo() {
+  return new Array();
+}
+var a = foo();
+a[0] = 1.1;
+
+// Emit a TransitionElementsKindStub which transitions from double to object.
+function store(a,x) {
+  a[0] = x;
+}
+store([1.1], 'a');
+store([1.1], 1.1);
+%OptimizeFunctionOnNextCall(store);
+
+// Use the TransitionElementsKindStub to transition from double to object.
+var b = foo();
+store(b, 'a');