Migrated several tests from blink to V8 repository.

test/webkit/array-indexing.js

Index: test/webkit/array-indexing.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/array-indexing.js
similarity index 83%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/array-indexing.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..d4e751bf1e6a117cf25523b7d500d228c58413c9 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/array-indexing.js
@@ -22,10 +22,16 @@
 // 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."
+"This test checks that array accessing doesn't do the wrong thing for negative indices"
 );
+var a = [];
+a[-5] =  true;
+shouldBe('a.length', '0');
+shouldBe('a["-5"]', 'a[-5]');
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
-
+// Just some bounds paranoia
+a = [1,2,3,4];
+shouldBe('a[4]', 'undefined');
 
+a = [];
+for (var i = 0; i > -1000; i--) a[i] = i;