Switch Js to JS

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 2119 matching lines @@
 
       MessageKind.INTERNAL_LIBRARY:
         const MessageTemplate(MessageKind.INTERNAL_LIBRARY,
           "Internal library '#{resolvedUri}' is not accessible."),
 
       MessageKind.JS_INTEROP_CLASS_CANNOT_EXTEND_DART_CLASS:
         const MessageTemplate(
           MessageKind.JS_INTEROP_CLASS_CANNOT_EXTEND_DART_CLASS,
           "Js-interop class '#{cls}' cannot extend from the non js-interop "
           "class '#{superclass}'.",
-          howToFix: "Annotate the superclass with @Js.",
+          howToFix: "Annotate the superclass with @JS.",
           examples: const [
               """
               import 'package:js/js.dart';
 
               class Foo { }
 
-              @Js()
+              @JS()
               class Bar extends Foo { }
 
               main() {
                 new Bar();
               }
               """]),
 
       MessageKind.JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER:
         const MessageTemplate(
           MessageKind.JS_INTEROP_CLASS_NON_EXTERNAL_MEMBER,
           "Member '#{member}' in js-interop class '#{cls}' is not external.",
           howToFix: "Mark all interop methods external",
           examples: const [
               """
               import 'package:js/js.dart';
 
-              @Js()
+              @JS()
               class Foo {
                 bar() {}
               }
 
               main() {
                 new Foo().bar();
               }
               """]),
 
       MessageKind.LIBRARY_NOT_FOUND:
@@ skipping 1327 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';
   }
 }