Migrate block 114 (and some of 113).

tests/language_2/generic_list_checked_test.dart

 // Copyright (c) 2013, 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';
 
-bool inCheckedMode() {
-  try {
-    int i = 'hest';
-  } catch (e) {
-    return true;
-  }
-  return false;
+main() {
+  Expect.throws(() {
+    List<int> t = new List<String>();
+  });
 }
-
-main() {
-  if (inCheckedMode()) {
-    Expect.throws(() {
-      List<int> t = new List<String>();
-    });
-  }
-}