Migrated several tests from blink to V8 repository.

test/webkit/dfg-array-dead.js

Index: test/webkit/dfg-array-dead.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/dfg-array-dead.js
similarity index 67%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/dfg-array-dead.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..a6276178f330570b3f1096034e8cde25b95a1b0c 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/dfg-array-dead.js
@@ -22,10 +22,31 @@
 // 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");
+}