Change new List(n) to return fixed length list.

samples/clock/web/numbers.dart

 // 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.
 
 part of clock;
 
 class ClockNumber {
   static const int WIDTH = 4;
   static const int HEIGHT = 7;
 
   CountDownClock app;
   Element root;
   List<List<ImageElement>> imgs;
   List<List<int>> pixels;
   int ballColor;
 
   ClockNumber(this.app, double pos, this.ballColor) {
     imgs = new List<List<ImageElement>>(HEIGHT);
 
     root = new DivElement();
     makeAbsolute(root);
     setElementPosition(root, pos, 0.0);
 
     for (int y = 0; y < HEIGHT; ++y) {
-      imgs[y] = new List<ImageElement>.fixedLength(WIDTH);
+      imgs[y] = new List<ImageElement>(WIDTH);
     }
 
     for (int y = 0; y < HEIGHT; ++y) {
       for (int x = 0; x < WIDTH; ++x) {
         imgs[y][x] = new ImageElement();
         root.nodes.add(imgs[y][x]);
         makeAbsolute(imgs[y][x]);
         setElementPosition(imgs[y][x],
             x * CountDownClock.BALL_WIDTH, y * CountDownClock.BALL_HEIGHT);
       }
@@ skipping 123 matching lines @@
        const[ 1, 1, 1, 1 ],
        const[ 1, 0, 0, 1 ],
        const[ 1, 0, 0, 1 ],
        const[ 1, 1, 1, 1 ],
        const[ 0, 0, 0, 1 ],
        const[ 0, 0, 0, 1 ],
        const[ 1, 1, 1, 1 ]
     ]
   ];
 }