Make core libraries use generic method syntax.

sdk/lib/convert/json.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;
 
 /**
  * Error thrown by JSON serialization if an object cannot be serialized.
  *
  * The [unsupportedObject] field holds that object that failed to be serialized.
@@ skipping 250 matching lines @@
       return new _JsonUtf8EncoderSink(sink._sink, _toEncodable,
                                       JsonUtf8Encoder._utf8Encode(indent),
                                       JsonUtf8Encoder.DEFAULT_BUFFER_SIZE);
     }
     return new _JsonEncoderSink(sink, _toEncodable, indent);
   }
 
   // Override the base class's bind, to provide a better type.
   Stream<String> bind(Stream<Object> stream) => super.bind(stream);
 
-  Converter<Object, dynamic/*=T*/> fuse/*<T>*/(
-      Converter<String, dynamic/*=T*/> other) {
+  Converter<Object, T> fuse<T>(

[floitsch, 2016/12/19 19:14:45]

should fit on the same line.

[Lasse Reichstein Nielsen, 2017/01/03 10:33:20]

Done.

+      Converter<String, T> other) {
     if (other is Utf8Encoder) {
       return new JsonUtf8Encoder(indent, _toEncodable)
           as dynamic/*=Converter<Object, T>*/;
     }
-    return super.fuse/*<T>*/(other);
+    return super.fuse<T>(other);
   }
 }
 
 /**
  * Encoder that encodes a single object as a UTF-8 encoded JSON string.
  *
  * This encoder works equivalently to first converting the object to
  * a JSON string, and then UTF-8 encoding the string, but without
  * creating an intermediate string.
  */
@@ skipping 771 matching lines @@
         buffer.setRange(index, end, indent);
         index = end;
       } else {
         for (int i = 0; i < indentLength; i++) {
           writeByte(indent[i]);
         }
       }
     }
   }
 }