Migrated several tests from blink to V8 repository.

test/webkit/enter-dictionary-indexing-mode-with-blank-indexing-type.js

Index: test/webkit/enter-dictionary-indexing-mode-with-blank-indexing-type.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/enter-dictionary-indexing-mode-with-blank-indexing-type.js
similarity index 82%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/enter-dictionary-indexing-mode-with-blank-indexing-type.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..4a95d84ab9ed66df01fc888a63afc872b2bff62a 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/enter-dictionary-indexing-mode-with-blank-indexing-type.js
@@ -22,10 +22,10 @@
 // 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 putting an object into dictionary mode when it has a blank indexing type doesn't cause us to crash."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
-
+// Freezing the Array prototype causes us to create ArrayStorage on the prototype, which has a blank indexing type.
+Object.freeze(Array.prototype);
 
+shouldBe("Object.isFrozen(Array.prototype)", "true");