Change List constructors.

sdk/lib/html/dart2js/html_dart2js.dart

 library html;
 
 import 'dart:async';
 import 'dart:isolate';
 import 'dart:json' as json;
 import 'dart:svg' as svg;
 // Copyright (c) 2012, 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.
 
@@ skipping 24932 matching lines @@
 
   visitPrimitive(x) => x;
 
   List visitList(List list) {
     List copy = _visited[list];
     if (copy != null) return copy;
 
     int len = list.length;
 
     // TODO(floitsch): we loose the generic type of the List.
-    copy = new List(len);
+    copy = new List.fixedLength(len);
     _visited[list] = copy;
     for (int i = 0; i < len; i++) {
       copy[i] = _dispatch(list[i]);
     }
     return copy;
   }
 
   Map visitMap(Map map) {
     Map copy = _visited[map];
     if (copy != null) return copy;
@@ skipping 33 matching lines @@
     int id = _nextFreeRefId++;
     _visited[map] = id;
     var keys = _serializeList(map.keys);
     var values = _serializeList(map.values);
     // TODO(floitsch): we are losing the generic type.
     return ['map', id, keys, values];
   }
 
   _serializeList(List list) {
     int len = list.length;
-    var result = new List(len);
+    var result = new List.fixedLength(len);
     for (int i = 0; i < len; i++) {
       result[i] = _dispatch(list[i]);
     }
     return result;
   }
 }
 
 /** Deserializes arrays created with [_Serializer]. */
 class _Deserializer {
   Map<int, dynamic> _deserialized;
@@ skipping 1158 matching lines @@
     if (length < 0) throw new ArgumentError('length');
     if (start < 0) throw new RangeError.value(start);
     int end = start + length;
     if (end > a.length) throw new RangeError.value(end);
     for (int i = start; i < end; i++) {
       accumulator.add(a[i]);
     }
     return accumulator;
   }
 }