Include the Dart reserved words in the reserved names handling

lib/message_generator.dart

 // Copyright (c) 2013, 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.
 
 part of protoc;
 
 const String SP = ' ';
 
 class MessageGenerator extends ProtobufContainer {
+  // List of Dart language reserved words in names which cannot be used in a
+  // subclass of GeneratedMessage.
+  static final List<String> reservedWords =
+      ['assert', 'break', 'case', 'catch', 'class', 'const', 'continue',
+       'default', 'do', 'else', 'enum', 'extends', 'false', 'final',
+       'finally', 'for', 'if', 'in', 'is', 'new', 'null', 'rethrow', 'return',
+       'super', 'switch', 'this', 'throw', 'true', 'try', 'var', 'void',
+       'while', 'with'];
+
   // List of names which cannot be used in a subclass of GeneratedMessage.
   static final List<String> reservedNames =
     ['hashCode', 'noSuchMethod','runtimeType', 'toString',
      'fromBuffer', 'fromJson', 'hasRequiredFields', 'isInitialized',
      'clear', 'getTagNumber', 'check',
      'writeToBuffer', 'writeToCodedBufferWriter',
      'mergeFromCodedBufferReader', 'mergeFromBuffer',
      'writeToJson', 'mergeFromJson',
      'addExtension', 'getExtension', 'setExtension',
      'hasExtension', 'clearExtension',
@@ skipping 43 matching lines @@
     for (FieldDescriptorProto field in _descriptor.field) {
       _fieldList.add(new ProtobufField(field, this, _context));
     }
     for (MessageGenerator m in _messageGenerators) {
       m.initializeFields();
     }
   }
 
   void generate(IndentingWriter out) {
     _methodNames.clear();
+    _methodNames.addAll(reservedWords);
     _methodNames.addAll(reservedNames);
 
     for (EnumGenerator e in _enumGenerators) {
       e.generate(out);
     }
 
     for (MessageGenerator m in _messageGenerators) {
       m.generate(out);
     }
 
@@ skipping 157 matching lines @@
             '(${fieldTypeString} v)${SP}'
             '{${SP}setField(${field.number},${SP}v);${SP}}');
         out.println('bool $hasIdentifier()${SP}=>'
             '${SP}hasField(${field.number});');
         out.println('void $clearIdentifier()${SP}=>'
             '${SP}clearField(${field.number});');
       }
     }
   }
 }