update V8 to TOT snapshot branch
diff --git a/test/mjsunit/array-shift.js b/test/mjsunit/array-shift.js
new file mode 100644
index 0000000..d985b31
--- /dev/null
+++ b/test/mjsunit/array-shift.js
@@ -0,0 +1,71 @@
+// Copyright 2010 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.
+
+// Check that shifting array of holes keeps it as array of holes
+(function() {
+ var array = new Array(10);
+ array.shift();
+ assertFalse(0 in array);
+})();
+
+// Now check the case with array of holes and some elements on prototype.
+(function() {
+ var len = 9;
+ var array = new Array(len);
+ Array.prototype[3] = "@3";
+ Array.prototype[7] = "@7";
+
+ assertEquals(len, array.length);
+ for (var i = 0; i < array.length; i++) {
+ assertEquals(array[i], Array.prototype[i]);
+ }
+
+ array.shift();
+
+ assertEquals(len - 1, array.length);
+ // Note that shift copies values from prototype into the array.
+ assertEquals(array[2], Array.prototype[3]);
+ assertTrue(array.hasOwnProperty(2));
+
+ assertEquals(array[6], Array.prototype[7]);
+ assertTrue(array.hasOwnProperty(6));
+
+ // ... but keeps the rest as holes:
+ Array.prototype[5] = "@5";
+ assertEquals(array[5], Array.prototype[5]);
+ assertFalse(array.hasOwnProperty(5));
+
+ assertEquals(array[3], Array.prototype[3]);
+ assertFalse(array.hasOwnProperty(3));
+
+ assertEquals(array[7], Array.prototype[7]);
+ assertFalse(array.hasOwnProperty(7));
+
+ assertTrue(delete Array.prototype[3]);
+ assertTrue(delete Array.prototype[5]);
+ assertTrue(delete Array.prototype[7]);
+})();