Migrated several tests from blink to V8 repository.

test/webkit/legitimately-captured-argument.js

Index: test/webkit/legitimately-captured-argument.js
diff --git a/test/webkit/concat-while-having-a-bad-time.js b/test/webkit/legitimately-captured-argument.js
similarity index 79%
copy from test/webkit/concat-while-having-a-bad-time.js
copy to test/webkit/legitimately-captured-argument.js
index dfda1e08a0b36194b787a44ee12a9693acd8aeaf..a7290e5e1b0005710172a419d08f0f3f2500fdd5 100644
--- a/test/webkit/concat-while-having-a-bad-time.js
+++ b/test/webkit/legitimately-captured-argument.js
@@ -22,10 +22,17 @@
 // 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 using an argument as a captured variable, in the legitimate sense rather than the function.arguments sense, works as expected."
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
-
+function makeCounter(x) {
+    return function() {
+        return ++x;
+    };
+}
 
+for (var i = 0; i < 100; ++i) {
+    var counter = makeCounter(i);
+    for (var j = 0; j < 10; ++j)
+        shouldBe("counter()", "" + (i + j + 1));
+}