Fix bad default value for SubListIterable.toList.

sdk/lib/internal/iterable.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._internal;
 
 /**
  * Marker interface for [Iterable] subclasses that have an efficient
  * [length] implementation.
  */
@@ skipping 276 matching lines @@
     if (count < 0) throw new RangeError.value(count);
     if (_endOrLength == null) {
       return new SubListIterable<E>(_iterable, _start, _start + count);
     } else {
       int newEnd = _start + count;
       if (_endOrLength < newEnd) return this;
       return new SubListIterable<E>(_iterable, _start, newEnd);
     }
   }
 
-  List<E> toList({bool growable: false}) {
+  List<E> toList({bool growable: true}) {
     int start = _start;
     int end = _iterable.length;
     if (_endOrLength != null && _endOrLength < end) end = _endOrLength;
     int length = end - start;
     if (length < 0) length = 0;
     List result = growable ? (new List<E>()..length = length)
                            : new List<E>(length);
     for (int i = 0; i < length; i++) {
       result[i] = _iterable.elementAt(start + i);
       if (_iterable.length < end) throw new ConcurrentModificationError(this);
@@ skipping 857 matching lines @@
  * Creates errors throw by [Iterable] when the element count is wrong.
  */
 abstract class IterableElementError {
   /** Error thrown thrown by, e.g., [Iterable.first] when there is no result. */
   static StateError noElement() => new StateError("No element");
   /** Error thrown by, e.g., [Iterable.single] if there are too many results. */
   static StateError tooMany() => new StateError("Too many elements");
   /** Error thrown by, e.g., [List.setRange] if there are too few elements. */
   static StateError tooFew() => new StateError("Too few elements");
 }