Updates dartc to recognize 'default' keyword on interface and updated factory method syntax

compiler/lib/implementation/array.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.
 
-class ListFactory {
-  factory List<E>.from(Iterable<E> other) {
+class ListFactory<E> {
+  factory List.from(Iterable<E> other) {
     List<E> list = new List<E>();
     for (final e in other) {
       list.add(e);
     }
     return list;
   }
 
-  factory List<E>([int length = null]) {
+  factory List([int length = null]) {
     bool isFixed = true;
     if (length === null) {
       length = 0;
       isFixed = false;
     } else if (length < 0) {
       throw new IllegalArgumentException("negative length $length");
     }
     // TODO(floitsch): make list creation more efficient. Currently we allocate
     // a new TypeToken at every allocation. Either we can optimize them away,
     // or we need to find other ways to pass type-information from Dart to JS.
@@ skipping 234 matching lines @@
   }
 
   static List _newList(int len) native {
     return new List(len);
   }
 
   static void _throwIndexOutOfRangeException(int index) native {
     throw new IndexOutOfRangeException(index);
   }
 }