Make ~/, round, ceil, floor, truncate return ints. Remove toInt.

samples/solar/solar.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.
 
 /**
  * A solar system visualization.
  */
 
 library solar;
 
@@ skipping 14 matching lines @@
 /**
  * Display the animation's FPS in a div.
  */
 void showFps(num fps) {
   if (fpsAverage == null) {
     fpsAverage = fps;
   }
 
   fpsAverage = fps * 0.05 + fpsAverage * 0.95;
 
-  query("#notes").text = "${fpsAverage.round().toInt()} fps";
+  query("#notes").text = "${fpsAverage.round()} fps";
 }
 
 // TODO: remove this once dart:html Point works cross-platform
 class Point {
   num x, y;
 
   Point(this.x, this.y);
 }
 
 /**
@@ skipping 221 matching lines @@
     } else {
       num angle = solarSystem.renderTime * orbitSpeed;
 
       return new Point(
         orbitRadius * cos(angle) + x,
         orbitRadius * sin(angle) + y);
     }
   }
 
 }