[polymer] switch comment style

pkg/polymer/lib/polymer.dart

 // Copyright (c) 2012, 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.
 
-/**
- * Custom HTML tags, data binding, and templates for building
- * structured, encapsulated, client-side web apps.
- *
- * Polymer.dart, the next evolution of Web UI,
- * is an in-progress Dart port of the
- * [Polymer project](http://www.polymer-project.org/).
- * Polymer.dart compiles to JavaScript and runs across the modern web.
- *
- * To use polymer.dart in your application,
- * first add a
- * [dependency](http://pub.dartlang.org/doc/dependencies.html)
- * to the app's pubspec.yaml file.
- * Instead of using the open-ended `any` version specifier,
- * we recommend using a range of version numbers, as in this example:
- *
- *     dependencies:
- *       polymer: '>=0.7.1 <0.8'
- *
- * Then import the library into your application:
- *
- *     import 'package:polymer/polymer.dart';
- *
- * ## Other resources
- *
- * * [Polymer.dart homepage](http://www.dartlang.org/polymer-dart/):
- * Example code, project status, and
- * information about how to get started using Polymer.dart in your apps.
- *
- * * [polymer.dart package](http://pub.dartlang.org/packages/polymer):
- * More details, such as the current major release number.
- *
- * * [Upgrading to Polymer.dart](http://www.dartlang.org/polymer-dart/upgrading-to-polymer-from-web-ui.html):
- * Tips for converting your apps from Web UI to Polymer.dart.
- */
+/// Custom HTML tags, data binding, and templates for building
+/// structured, encapsulated, client-side web apps.
+///
+/// Polymer.dart, the next evolution of Web UI,
+/// is an in-progress Dart port of the
+/// [Polymer project](http://www.polymer-project.org/).
+/// Polymer.dart compiles to JavaScript and runs across the modern web.
+///
+/// To use polymer.dart in your application,
+/// first add a
+/// [dependency](http://pub.dartlang.org/doc/dependencies.html)
+/// to the app's pubspec.yaml file.
+/// Instead of using the open-ended `any` version specifier,
+/// we recommend using a range of version numbers, as in this example:
+///
+///     dependencies:
+///       polymer: '>=0.7.1 <0.8'
+///
+/// Then import the library into your application:
+///
+///     import 'package:polymer/polymer.dart';
+///
+/// ## Other resources
+///
+/// * [Polymer.dart homepage](http://www.dartlang.org/polymer-dart/):
+/// Example code, project status, and
+/// information about how to get started using Polymer.dart in your apps.
+///
+/// * [polymer.dart package](http://pub.dartlang.org/packages/polymer):
+/// More details, such as the current major release number.
+///
+/// * [Upgrading to Polymer.dart](http://www.dartlang.org/polymer-dart/upgrading-to-polymer-from-web-ui.html):
+/// Tips for converting your apps from Web UI to Polymer.dart.
 library polymer;
 
 import 'dart:async';
 import 'dart:collection' show HashMap, HashSet;
 import 'dart:html';
 import 'dart:js' as js;
 
 @MirrorsUsed(metaTargets:
     const [Reflectable, ObservableProperty, CustomTag, _InitMethodAnnotation],
     override: const ['smoke.mirrors', 'polymer'])
@@ skipping 13 matching lines @@
 import 'deserialize.dart' as deserialize;
 
 export 'package:observe/observe.dart';
 export 'package:observe/html.dart';
 
 part 'src/boot.dart';
 part 'src/declaration.dart';
 part 'src/instance.dart';
 part 'src/job.dart';
 part 'src/loader.dart';