Migrated several tests from blink to V8 repository.

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

Index: test/webkit/var-shadows-arg-gc-crash.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/var-shadows-arg-gc-crash.js
similarity index 69%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/var-shadows-arg-gc-crash.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..0819ec52dfc39328fd9594ca5c8270e39d7db907 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/var-shadows-arg-gc-crash.js
@@ -22,10 +22,36 @@
 // 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 mark their values correctly in the face of duplicate parameter names and does not crash.'
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function gc()
+{
+    if (this.GCController)
+        GCController.collect();
+    else
+        for (var i = 0; i < 10000; ++i) // Allocate a sufficient number of objects to force a GC.
+            ({});
+}
 
+function eatRegisters(param)
+{
+    if (param > 10)
+        return;
+    eatRegisters(param + 1);
+}
 
+function test(a, c) {
+    var b = ["success"], a, c;
+    return function() {
+        return b[0];
+    }
+}
+
+var testClosure = test();
+
+var extra = test();
+eatRegisters(0);
+gc();
+
+shouldBe('testClosure()', '"success"');