Change core lib, dart2js, and more for new optional parameters syntax

tests/isolate/timer_cancel_test.dart

Index: tests/isolate/timer_cancel_test.dart
===================================================================
--- tests/isolate/timer_cancel_test.dart	(revision 13392)
+++ tests/isolate/timer_cancel_test.dart	(working copy)
@@ -26,10 +26,10 @@
       expect(repeatTimer == 1);
     }
 
-    cancelTimer = new Timer(1000, expectAsync1(unreachable, count: 0));
+    cancelTimer = new Timer(1000, expectAsync1(unreachable, 0));
     cancelTimer.cancel();
     new Timer(1000, expectAsync1(handler));
-    cancelTimer = new Timer(2000, expectAsync1(unreachable, count: 0));
+    cancelTimer = new Timer(2000, expectAsync1(unreachable, 0));
     repeatTimer = 0;
     new Timer.repeating(1500, expectAsync1(repeatHandler));
   });
@@ -37,6 +37,6 @@
   test("cancel timer with same time", () {
     var t2;
     var t1 = new Timer(0, expectAsync1((t) => t2.cancel()));
-    t2 = new Timer(0, expectAsync1((t) => t1.cancel(), count: 0));
+    t2 = new Timer(0, expectAsync1((t) => t1.cancel(), 0));
   });
 }