Migrated test block 13 to Dart 2.0.

tests/corelib_strong/list_fixed_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.
-
-import "package:expect/expect.dart";
-
-main() {
-  var a;
-
-  a = new List(42);
-  Expect.equals(42, a.length);
-  Expect.throws(() => a.add(499), (e) => e is UnsupportedError);
-  Expect.equals(42, a.length);
-  for (int i = 0; i < 42; i++) {
-    Expect.equals(null, a[i]);
-  }
-  Expect.throws(() => a.clear(), (e) => e is UnsupportedError);
-  Expect.equals(42, a.length);
-
-  a = new List.filled(42, -2);
-  Expect.equals(42, a.length);
-  Expect.throws(() => a.add(499), (e) => e is UnsupportedError);
-  Expect.equals(42, a.length);
-  for (int i = 0; i < 42; i++) {
-    Expect.equals(-2, a[i]);
-  }
-  Expect.throws(() => a.clear(), (e) => e is UnsupportedError);
-  Expect.equals(42, a.length);
-}