Migrated several tests from blink to V8 repository.

test/webkit/dfg-array-dead.js

 // 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 the behavior of Array.prototype.concat while the array is having a bad time due to one of the elements we are concatenating."
+"Tests that an array being dead does not result in register allocation failures."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function foo() {
+    var z = new Array(00, 01, 02, 03, 04, 05, 06, 07, 08, 09,
+                      10, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+                      20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
+                      30, 31, 32, 33, 34, 35, 36, 37, 38, 39,
+                      40, 41, 42, 43, 44, 45, 46, 47, 48, 49,
+                      50, 51, 52, 53, 54, 55, 56, 57, 58, 59,
+                      60, 61, 62, 63, 64, 65, 66, 67, 68, 69);
 
+    z = bar(1);
 
+    return z.length;
+}
+
+function bar(x) {
+    var a = [];
+    a[x] = 1;
+
+    return a;
+}
+
+for (var i = 0; i < 1000; ++i) {
+    shouldBe("foo()", "2");
+}
+