Support compilation of Hello World

pkg/compiler/lib/src/diagnostics/messages.dart

 // Copyright (c) 2011, 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.
 
 /**
  * The messages in this file should meet the following guide lines:
  *
  * 1. The message should be a complete sentence starting with an uppercase
  * letter, and ending with a period.
  *
@@ skipping 3222 matching lines @@
           howToFix: "Try rewriting the loop as a for-in loop or removing the "
               "'await' keyword.",
           examples: const [
             """
 main() async* {
   await for (int i = 0; i < 10; i++) {}
 }
 """
           ]),
 
-      MessageKind.ASYNC_AWAIT_NOT_SUPPORTED:
-        const MessageTemplate(MessageKind.ASYNC_AWAIT_NOT_SUPPORTED,
-            "The async/sync* syntax is not supported on the current platform."),
-
+      MessageKind.ASYNC_AWAIT_NOT_SUPPORTED: const MessageTemplate(
+          MessageKind.ASYNC_AWAIT_NOT_SUPPORTED,
+          "The async/sync* syntax is not supported on the current platform."),
 
       MessageKind.ASYNC_MODIFIER_ON_ABSTRACT_METHOD: const MessageTemplate(
           MessageKind.ASYNC_MODIFIER_ON_ABSTRACT_METHOD,
           "The modifier '#{modifier}' is not allowed on an abstract method.",
           options: const ['--enable-async'],
           howToFix: "Try removing the '#{modifier}' modifier or adding a "
               "body to the method.",
           examples: const [
             """
 abstract class A {
@@ skipping 461 matching lines @@
   static String convertToString(value) {
     if (value is ErrorToken) {
       // Shouldn't happen.
       return value.assertionMessage;
     } else if (value is Token) {
       value = value.value;
     }
     return '$value';
   }
 }