Undo some of the initializing formal change 1755

runtime/bin/string_stream.dart

 // Copyright (c) 2011, 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.
 
 // Interface for decoders decoding binary data into objects of type T.
 interface _Decoder<T> {
   // Add more binary data to be decoded. The ownership of the buffer
   // is transfered to the decoder and the caller most not modify it any more.
   int write(List<int> buffer);
 
   // Returns whether any decoded data is available.
   bool isEmpty();
 
   // Get the data decoded since the last call to decode.
   T get decoded();
 }
 
 
 class DecoderException implements Exception {
-  const DecoderException([String msg]) : message = msg;
+  const DecoderException([String this.message]);
   String toString() => "DecoderException: $message";
   final String message;
 }
 
 
 // Utility class for decoding UTF-8 from data delivered as a stream of
 // bytes.
 class _StringDecoderBase implements _Decoder<String> {
   _StringDecoderBase()
       : _bufferList = new _BufferList(),
@@ skipping 283 matching lines @@
   String _encoding;
   _Decoder _decoder;
   String _buffer;  // String can be buffered here if readLine is used.
   int _bufferLineStart;  // Current offset into _buffer if any.
   bool _inputClosed = false;  // Is the underlying input stream closed?
   bool _closed = false;  // Is this stream closed.
   bool _eof = false;  // Has all data been read from the decoder?
   var _clientDataHandler;
   var _clientCloseHandler;
 }