Handle break as continue

tests/compiler/dart2js/kernel/run_from_dill_test.dart

 // Copyright (c) 2017, 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 that we can compile from dill and run the generated code with d8.
 library dart2js.kernel.run_from_dill_test;
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:async_helper/async_helper.dart';
 import 'package:expect/expect.dart';
 import 'package:compiler/src/commandline_options.dart';
 import 'package:compiler/src/dart2js.dart' as dart2js;
 import 'package:compiler/src/filenames.dart';
 
 import 'compiler_helper.dart';
 import '../sourcemaps/stacktrace_test.dart';
 import '../serialization/helper.dart';
 
 const SOURCE = const {
   'main.dart': '''
 main() {
-  print('Hello World!');
+  for (int i = 0; i < 10; i++) {
+    if (i == 5) continue;
+    print('Hello World: \$i!');
+    if (i == 7) break;
+  }
 }
 '''
 };
 
+const OUTPUT = '''
+Hello World: 0!
+Hello World: 1!
+Hello World: 2!
+Hello World: 3!
+Hello World: 4!
+Hello World: 6!
+Hello World: 7!
+''';
+
 main(List<String> args) {
   asyncTest(() async {
     await mainInternal(args);
   });
 }
 
 enum ResultKind { crashes, errors, warnings, success, failure }
 
 Future<ResultKind> mainInternal(List<String> args,
     {bool skipWarnings: false, bool skipErrors: false}) async {
@@ skipping 23 matching lines @@
 
   await dart2js.internalMain(dart2jsArgs);
 
   print('---- run from dill --------------------------------------------');
   ProcessResult runResult = Process.runSync(d8executable,
       ['sdk/lib/_internal/js_runtime/lib/preambles/d8.js', output]);
   String out = '${runResult.stderr}\n${runResult.stdout}';
   print('d8 output:');
   print(out);
   Expect.equals(0, runResult.exitCode);
+  Expect.equals(OUTPUT, runResult.stdout.replaceAll('\r\n', '\n'));
 
   return ResultKind.success;
 }