Rename Date to DateTime.

editor/util/debuggertest/pets.dart

 
 library pets;
 
 import 'dart:math';
 import 'dart:isolate';
 
 final num MAX_CATS = 10;
 
 final SPARKY = const Cat("Sparky");
 
@@ skipping 70 matching lines @@
 
 class Dog extends FloppyEars implements Animal {
   static final String BEST_DOG_NAME = "Chips";
 
   String name;
 
   bool collar;
 
   int fleaCount;
 
-  Date bornOn;
+  DateTime bornOn;
 
   Dog(this.name) {
     var rand = new Random();
     fleaCount = rand.nextInt(10);
-    bornOn = new Date.now();
+    bornOn = new DateTime.now();
   }
 
   Dog.withFleas(this.name, this.fleaCount) {
-    bornOn = new Date.now();
+    bornOn = new DateTime.now();
   }
 
   bool livesWith(Animal other) => true;
 
   void performAction() {
     String name = "iHideAnInstanceVariable";
 
     print("bark");
 
     var closure = () {
@@ skipping 79 matching lines @@
 
   // display sets (_HashSetImpl)
   var set = new Set();
   set.add(1);
   set.add(2);
   set.add(2);
   set.add("what");
 
   print("types");
 }