Update test status for scalar list test and move it to the right directory.

tests/language/int_array_load_elimination_test.dart

-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-//
-// Test correct load elimination for scalar lists.
-
-import 'dart:scalarlist';
-
-void testUint16() {
-  Uint16List intArray = new Uint16List(1);
-  intArray[0] = -1;
-  var x = intArray[0];
-  Expect.equals(65535, x);
-}
-
-main() {
-  for (int i = 0; i < 2000; i++) {
-    testUint16();
-  }
-}