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

sdk/lib/_internal/compiler/implementation/util/link.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 org_dartlang_compiler_util;
 
 class Link<T> extends Iterable<T> {
   T get head => null;
   Link<T> get tail => null;
 
@@ skipping 20 matching lines @@
 
   Link<T> prepend(T element) {
     return new LinkEntry<T>(element, this);
   }
 
   Iterator<T> get iterator => new LinkIterator<T>(this);
 
   void printOn(StringBuffer buffer, [separatedBy]) {
   }
 
-  List toList({ bool growable: false }) => growable ? <T>[] : new List<T>(0);
+  List toList({ bool growable: true }) => growable ? <T>[] : new List<T>(0);
 
   bool get isEmpty => true;
 
   Link<T> reverse() => this;
 
   Link<T> reversePrependAll(Link<T> from) {
     if (from.isEmpty) return this;
     return this.prepend(from.head).reversePrependAll(from.tail);
   }
 
@@ skipping 20 matching lines @@
 
 abstract class LinkBuilder<T> {
   factory LinkBuilder() = LinkBuilderImplementation;
 
   Link<T> toLink();
   void addLast(T t);
 
   final int length;
   final bool isEmpty;
 }