Support for DartBlockBody, DartExpressionBody, DartOmit in java2dart.

pkg/analyzer/lib/src/string_source.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.
 
 library analyzer.string_source;
 
 import 'generated/source.dart';
 import 'generated/engine.dart' show TimestampedData;
 
 /// An implementation of [Source] that's based on an in-memory Dart string.
 class StringSource implements Source {
   final String _contents;
   final String fullName;
   final int modificationStamp;
 
   StringSource(this._contents, this.fullName)
       : modificationStamp = new DateTime.now().millisecondsSinceEpoch;
 
   bool operator==(Object object) {
     if (object is StringSource) {
       StringSource ssObject = object;
       return ssObject._contents == _contents && ssObject.fullName == fullName;
     }
     return false;
   }
 
   bool exists() => true;
 
-  void getContentsToReceiver(Source_ContentReceiver receiver) =>
-      receiver.accept(_contents, modificationStamp);
-
   TimestampedData<String> get contents => new TimestampedData(modificationStamp, _contents);
 
   String get encoding => throw new UnsupportedError("StringSource doesn't support "
       "encoding.");
 
   String get shortName => fullName;
 
   UriKind get uriKind => throw new UnsupportedError("StringSource doesn't support "
       "uriKind.");
 
   int get hashCode => _contents.hashCode ^ fullName.hashCode;
 
   bool get isInSystemLibrary => false;
 
   Source resolveRelative(Uri relativeUri) => throw new UnsupportedError(
       "StringSource doesn't support resolveRelative.");
 }