Format generated files.

pkg/analyzer_plugin/tool/spec/codegen_dart_protocol.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.
 
 import 'dart:convert';
 
 import 'package:analyzer/src/codegen/tools.dart';
 import 'package:front_end/src/codegen/tools.dart';
 import 'package:html/dom.dart' as dom;
 
@@ skipping 538 matching lines @@
       });
       writeln('}');
     }
   }
 
   /**
    * Emit the operator== code for an object class.
    */
   void emitObjectEqualsMember(TypeObject type, String className) {
     writeln('@override');
-    writeln('bool operator==(other) {');
+    writeln('bool operator ==(other) {');
     indent(() {
       writeln('if (other is $className) {');
       indent(() {
         var comparisons = <String>[];
         if (type != null) {
           for (TypeObjectField field in type.fields) {
             if (field.value != null) {
               continue;
             }
             comparisons.add(compareEqualsCode(
@@ skipping 704 matching lines @@
 
   @override
   String get asClosure => '($type value) => ${callback('value')}';
 
   @override
   bool get isIdentity => false;
 
   @override
   String asSnippet(String value) => callback(value);
 }