package barback: Update the comment style generic syntax.

lib/src/asset/asset_node.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.
 
 library barback.asset.asset_node;
 
 import 'dart:async';
 
 import '../errors.dart';
 import '../graph/transform_node.dart';
@@ skipping 65 matching lines @@
       new StreamController<AssetState>.broadcast(sync: true);
 
   /// Calls [callback] when the node's asset is available.
   ///
   /// If the asset is currently available, this calls [callback] synchronously
   /// to ensure that the asset is still available.
   ///
   /// The return value of [callback] is piped to the returned Future. If the
   /// asset is removed before becoming available, the returned future will throw
   /// an [AssetNotFoundException].
-  Future/*<T>*/ whenAvailable/*<T>*/(/*=T*/ callback(Asset asset)) {
+  Future<T> whenAvailable<T>(T callback(Asset asset)) {
     return _waitForState((state) => state.isAvailable || state.isRemoved,
         (state) {
       if (state.isRemoved) throw new AssetNotFoundException(id);
       return callback(asset);
     });
   }
 
   /// Calls [callback] when the node's asset is removed.
   ///
   /// If the asset is already removed when this is called, it calls [callback]
@@ skipping 10 matching lines @@
   Future<AssetState> whenStateChanges() {
     var startState = state;
     return _waitForState((state) => state != startState, (state) => state);
   }
 
   /// Calls [callback] as soon as the node is in a state that matches [test].
   ///
   /// [callback] is called synchronously if this is already in such a state.
   ///
   /// The return value of [callback] is piped to the returned Future.
-  Future/*<T>*/ _waitForState/*<T>*/(
-      bool test(AssetState state),
-      /*=T*/ callback(AssetState state)) {
+  Future<T> _waitForState<T>(
+      bool test(AssetState state), T callback(AssetState state)) {
     if (test(state)) return new Future.sync(() => callback(state));
     return onStateChange.firstWhere(test).then((_) => callback(state));
   }
 
   AssetNode._(this.id, this._transform, this._origin)
       : _state = AssetState.RUNNING;
 
   AssetNode._available(Asset asset, this._transform, this._origin)
       : id = asset.id,
         _asset = asset,
@@ skipping 144 matching lines @@
 
   /// Whether this state is [AssetState.RUNNING].
   bool get isDirty => this == AssetState.RUNNING;
 
   final String name;
 
   const AssetState._(this.name);
 
   String toString() => name;
 }