Make List.from and Iterable.toList default to not growable.

sdk/lib/collection/queue.dart

 // Copyright (c) 2011, 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 [Queue] is a collection that can be manipulated at both ends. One
  * can iterate over the elements of a queue through [forEach] or with
  * an [Iterator].
@@ skipping 391 matching lines @@
     return _table[_head];
   }
 
   E elementAt(int index) {
     if (index < 0 || index > length) {
       throw new RangeError.range(index, 0, length);
     }
     return _table[(_head + index) & (_table.length - 1)];
   }
 
-  List<E> toList({ bool growable: false }) {
+  List<E> toList({ bool growable: true }) {
     List<E> list;
     if (growable) {
       list = new List<E>()..length = length;
     } else {
       list = new List<E>(length);
     }
     _writeToList(list);
     return list;
   }
 
@@ skipping 269 matching lines @@
     _queue._checkModification(_modificationCount);
     if (_position == _end) {
       _current = null;
       return false;
     }
     _current = _queue._table[_position];
     _position = (_position + 1) & (_queue._table.length - 1);
     return true;
   }
 }