Make core libraries use generic method syntax.

tests/lib/convert/chunked_conversion1_test.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.
 
 import 'dart:convert';
 
 import 'package:expect/expect.dart';
 
 // This test implements a new special interface that can be used to
 // send data more efficiently between two converters.
 
-abstract class MyChunkedIntSink extends ChunkedConversionSink<int> {
+abstract class MyChunkedIntSink extends ChunkedConversionSink<List<int>> {
   MyChunkedIntSink();
   factory MyChunkedIntSink.from(sink) = IntAdapterSink;
   factory MyChunkedIntSink.withCallback(callback) {
     var sink = new ChunkedConversionSink.withCallback(callback);
     return new MyChunkedIntSink.from(sink);
   }
 
   add(int i);
   close();
 
@@ skipping 222 matching lines @@
   intSink.add(-3);
   intSink.add(3);
   intSink.close();
   Expect.isTrue(hasExecuted);
   Expect.equals(0, specialBCounter);
   specialBCounter = 0;
   Expect.equals(1, specialICounter);
   specialICounter = 0;
   hasExecuted = false;
 }