Support checked mode

tests/compiler/dart2js/serialization/compilation_test_helper.dart

 // Copyright (c) 2016, 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.
 
 library dart2js.serialization_compilation_test;
 
 import 'dart:async';
 import 'package:async_helper/async_helper.dart';
-import 'package:compiler/src/compiler.dart';
+import 'package:compiler/src/commandline_options.dart';
 import 'package:compiler/src/filenames.dart';
 import '../memory_compiler.dart';
 import 'helper.dart';
 import 'test_data.dart';
 import '../output_collector.dart';
 
 main(List<String> args) {
   asyncTest(() async {
     Arguments arguments = new Arguments.from(args);
     SerializedData serializedData =
@@ skipping 17 matching lines @@
      List<Uri> resolutionInputs,
      int index,
      Test test,
      bool verbose: false}) async {
   String testDescription = test != null ? test.name : '${entryPoint}';
   String id = index != null ? '$index: ' : '';
   print('------------------------------------------------------------------');
   print('compile ${id}${testDescription}');
   print('------------------------------------------------------------------');
   OutputCollector outputCollector = new OutputCollector();
+  List<String> options = [];
+  if (test.checkedMode) {
+    options.add(Flags.enableCheckedMode);
+  }
   await runCompiler(
       entryPoint: entryPoint,
       memorySourceFiles: sourceFiles,
       resolutionInputs: resolutionInputs,
-      options: [],
+      options: options,
       outputProvider: outputCollector);
   if (verbose) {
     print(outputCollector.getOutput('', 'js'));
   }
 }