Fix void foo(..) => ... to use { } instead.

sdk/lib/convert/chunked_conversion.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 dart.convert;
 
 typedef void _ChunkedConversionCallback<T>(T accumulated);
 
 /**
  * A converter that supports chunked conversions.
@@ skipping 112 matching lines @@
    * [handleData] is added into this sink.
    */
   ChunkedConversionSink<S> _chunkedSink;
 
   _ConverterStreamEventSink(
       Converter/*=ChunkedConverter<dynamic, dynamic, S, T>*/ converter,
       EventSink<T> sink)
       : this._eventSink = sink,
         _chunkedSink = converter.startChunkedConversion(sink);
 
-  void add(S o) => _chunkedSink.add(o);
+  void add(S o) { _chunkedSink.add(o); }
   void addError(Object error, [StackTrace stackTrace]) {
     _eventSink.addError(error, stackTrace);
   }
-  void close() => _chunkedSink.close();
+  void close() { _chunkedSink.close(); }
 }
 
 /**
  * Fuses two chunked converters.
  */
 class _FusedChunkedConverter<S, M, T, S2, M2, T2> extends
     ChunkedConverter<S, T, S2, T2> {
   final ChunkedConverter<S, M, S2, M2> _first;
   final ChunkedConverter<M, T, M2, T2> _second;
 
   _FusedChunkedConverter(this._first, this._second);
 
   T convert(S input) => _second.convert(_first.convert(input));
 
   ChunkedConversionSink<S2> startChunkedConversion(Sink<T2> sink) {
     return _first.startChunkedConversion(_second.startChunkedConversion(sink));
   }
 }