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

sdk/lib/convert/byte_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;
 
 /**
  * The [ByteConversionSink] provides an interface for converters to
  * efficiently transmit byte data.
  *
@@ skipping 46 matching lines @@
  * This class adapts a simple [Sink] to a [ByteConversionSink].
  *
  * All additional methods of the [ByteConversionSink] (compared to the
  * ChunkedConversionSink) are redirected to the `add` method.
  */
 class _ByteAdapterSink extends ByteConversionSinkBase {
   final Sink<List<int>> _sink;
 
   _ByteAdapterSink(this._sink);
 
-  void add(List<int> chunk) => _sink.add(chunk);
-  void close() => _sink.close();
+  void add(List<int> chunk) { _sink.add(chunk); }
+  void close() { _sink.close(); }
 }
 
 /**
  * This class accumulates all chunks into one list of bytes
  * and invokes a callback when the sink is closed.
  *
  * This class can be used to terminate a chunked conversion.
  */
 class _ByteCallbackSink extends ByteConversionSinkBase {
   static const _INITIAL_BUFFER_SIZE = 1024;
@@ skipping 28 matching lines @@
     v |= v >> 8;
     v |= v >> 16;
     v++;
     return v;
   }
 
   void close() {
     _callback(_buffer.sublist(0, _bufferIndex));
   }
 }