Migrated several tests from blink to V8 repository.

test/webkit/dfg-arguments-cross-code-origin.js

Index: test/webkit/dfg-arguments-cross-code-origin.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/dfg-arguments-cross-code-origin.js
similarity index 81%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/dfg-arguments-cross-code-origin.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..0793dfa9acb5dd82d3360b069f384667bdf48281 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/dfg-arguments-cross-code-origin.js
@@ -22,10 +22,23 @@
 // 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 uses of 'arguments' that are aliased but span code origins."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
+function foo() {
+    return arguments;
+}
 
+function bar(a) {
+    var result = 0;
+    for (var i = 0; i < a.length; ++i)
+        result += a[i];
+    return result;
+}
 
+function baz(x) {
+    return bar(foo(x));
+}
+
+for (var i = 0; i < 200; ++i)
+    shouldBe("baz(42)", "42");