Rename Date to DateTime.

samples/clock/clock.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.
 
 library clock;
 
 import 'dart:html';
 import 'dart:math';
 
 part 'balls.dart';
@@ skipping 29 matching lines @@
   int displayedHour = 0;
   int displayedMinute = 0;
   int displayedSecond = 0;
   Balls balls = new Balls();
 
   CountDownClock() {
     var parent = query("#canvas-content");
 
     createNumbers(parent, parent.clientWidth, parent.clientHeight);
 
-    updateTime(new Date.now());
+    updateTime(new DateTime.now());
 
     window.requestAnimationFrame(tick);
   }
 
   void tick(num time) {
-    updateTime(new Date.now());
+    updateTime(new DateTime.now());
     balls.tick(time);
     window.requestAnimationFrame(tick);
   }
 
-  void updateTime(Date now) {
+  void updateTime(DateTime now) {
     if (now.hour != displayedHour) {
       setDigits(pad2(now.hour), hours);
       displayedHour = now.hour;
     }
 
     if (now.minute != displayedMinute) {
       setDigits(pad2(now.minute), minutes);
       displayedMinute = now.minute;
     }
 
@@ skipping 83 matching lines @@
 
 void setElementPosition(Element elem, double x, double y) {
   elem.style.transform = 'translate(${x}px, ${y}px)';
 }
 
 void setElementSize(Element elem, double l, double t, double r, double b) {
   setElementPosition(elem, l, t);
   elem.style.right = "${r}px";
   elem.style.bottom = "${b}px";
 }