Migrated several tests from blink to V8 repository.

test/webkit/var-shadows-arg-crash.js

Index: test/webkit/var-shadows-arg-crash.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/var-shadows-arg-crash.js
similarity index 85%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/var-shadows-arg-crash.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..585fa2bade3b40078c0068867e4a9a44433c029f 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/var-shadows-arg-crash.js
@@ -22,10 +22,15 @@
 // 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 to ensure that activations are built correctly in the face of duplicate parameter names and do not cause crashes.'
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
 
+function test(a) {
+    var b, a = "success";
+    return function() {
+        return a;
+    }
+}
 
+shouldBe('test()()', '"success"');