Create associated packages for the dart:collection and dart:async libs.

sdk/lib/collection/list.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.collection;
 
 /** A reusable set used to identify cyclic lists during toString() calls. */
 Set _toStringVisiting = new HashSet.identity();
 
 /**
  * Abstract implementation of a list.
  *
  * All operations are defined in terms of `length`, `operator[]`,
  * `operator[]=` and `length=`, which need to be implemented.
  *
  * *NOTICE*: Forwarding just these four operations to a normal growable [List]
  * (as created by `new List()`) will give very bad performance for `add` and
  * `addAll` operations of `ListBase`. These operations are implemented by
  * increasing the length of the list by one for each `add` operation, and
  * repeatedly increasing the length of a growable list is not efficient.
  * To avoid this, either override 'add' and 'addAll' to also forward directly
  * to the growable list, or, preferably, use `DelegatingList` from
- * "package:collection_helpers/wrappers.dart" instead.
+ * "package:collection/wrappers.dart" instead.
  */
 abstract class ListBase<E> = Object with ListMixin<E>;
 
 /**
  * Base implementation of a [List] class.
  *
  * This class can be used as a mixin.
  *
  * This implements all read operations using only the `length` and
  * `operator[]` members. It implements write operations using those and
  * `length=` and `operator[]=`
  *
  * *NOTICE*: Forwarding just these four operations to a normal growable [List]
  * (as created by `new List()`) will give very bad performance for `add` and
  * `addAll` operations of `ListBase`. These operations are implemented by
  * increasing the length of the list by one for each `add` operation, and
  * repeatedly increasing the length of a growable list is not efficient.
  * To avoid this, either override 'add' and 'addAll' to also forward directly
  * to the growable list, or, if possible, use `DelegatingList` from
- * "package:collection_helpers/wrappers.dart" instead.
+ * "package:collection/wrappers.dart" instead.
  */
 abstract class ListMixin<E> implements List<E> {
 
   // Iterable interface.
   Iterator<E> get iterator => new ListIterator<E>(this);
 
   E elementAt(int index) => this[index];
 
   void forEach(void action(E element)) {
     int length = this.length;
@@ skipping 481 matching lines @@
       result.write('[');
       result.writeAll(this, ', ');
       result.write(']');
      } finally {
        _toStringVisiting.remove(this);
      }
 
     return result.toString();
   }
 }