anchor.diff:  
       group("with chunked conversion", () {
         List<List<int>> results;
  -      ByteConversionSink<List<int>> sink;
  +      ByteConversionSink sink;
         setUp(() {
           results = [];
           var controller = new StreamController<List<int>>(sync: true);
  
positive.code:     });
  
      test("parses hex size", () {
        var data = new Iterable.generate(0xA7).toList();
        expect(
            chunkedCoding.decode([$a, $7, $cr, $lf]
              ..addAll(data)
  
negative.code: 
      group("with chunked conversion", () {
        List<List<int>> results;
        ByteConversionSink sink;
        setUp(() {
          results = [];
          var controller = new StreamController<List<int>>(sync: true);
  