Update generic comment syntax

lib/src/css_class_set.dart

 // Copyright (c) 2014, 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.
 
 // TODO(jmesserly): everything in this file is copied straight from "dart:html".
 library html.dom.src;
 
 import 'dart:collection';
+
 import 'package:html/dom.dart';
 
 class ElementCssClassSet extends CssClassSetImpl {
   final Element _element;
 
   ElementCssClassSet(this._element);
 
   Set<String> readClasses() {
     var s = new LinkedHashSet<String>();
     var classname = _element.className;
 
     for (String name in classname.split(' ')) {
       String trimmed = name.trim();
       if (!trimmed.isEmpty) {
         s.add(trimmed);
       }
     }
     return s;
   }
 
   void writeClasses(Set<String> s) {
     _element.className = s.join(' ');
   }
 }
 
 /** A Set that stores the CSS class names for an element. */
 abstract class CssClassSet implements Set<String> {
-
   /**
    * Adds the class [value] to the element if it is not on it, removes it if it
    * is.
    *
    * If [shouldAdd] is true, then we always add that [value] to the element. If
    * [shouldAdd] is false then we always remove [value] from the element.
    */
   bool toggle(String value, [bool shouldAdd]);
 
   /**
@@ skipping 97 matching lines @@
   Iterator<String> get iterator => readClasses().iterator;
   // interface Iterable - END
 
   // interface Collection - BEGIN
   void forEach(void f(String element)) {
     readClasses().forEach(f);
   }
 
   String join([String separator = ""]) => readClasses().join(separator);
 
-  Iterable/*<T>*/ map/*<T>*/(/*=T*/ f(String e)) => readClasses().map(f);
+  Iterable<T> map<T>(T f(String e)) => readClasses().map(f);
 
   Iterable<String> where(bool f(String element)) => readClasses().where(f);
 
-  Iterable/*<T>*/ expand/*<T>*/(Iterable/*<T>*/ f(String element)) => readClasses().expand(f);
+  Iterable<T> expand<T>(Iterable<T> f(String element)) =>
+      readClasses().expand(f);
 
   bool every(bool f(String element)) => readClasses().every(f);
 
   bool any(bool f(String element)) => readClasses().any(f);
 
   bool get isEmpty => readClasses().isEmpty;
 
   bool get isNotEmpty => readClasses().isNotEmpty;
 
   int get length => readClasses().length;
 
   String reduce(String combine(String value, String element)) {
     return readClasses().reduce(combine);
   }
 
-  dynamic/*=T*/ fold/*<T>*/(var/*=T*/ initialValue,
-      dynamic/*=T*/ combine(var/*=T*/ previousValue, String element)) {
+  T fold<T>(T initialValue, T combine(T previousValue, String element)) {
     return readClasses().fold(initialValue, combine);
   }
   // interface Collection - END
 
   // interface Set - BEGIN
   /**
    * Determine if this element contains the class [value].
    *
    * This is the Dart equivalent of jQuery's
    * [hasClass](http://api.jquery.com/hasClass/).
@@ skipping 135 matching lines @@
    */
   Set<String> readClasses();
 
   /**
    * Join all the elements of a set into one string and write
    * back to the element.
    * This is intended to be overridden by specific implementations.
    */
   void writeClasses(Set<String> s);
 }