Unify Object implementation across dart2js and VM.

lib/compiler/implementation/lib/core.dart

Index: lib/compiler/implementation/lib/core.dart
diff --git a/lib/compiler/implementation/lib/core.dart b/lib/compiler/implementation/lib/core.dart
index 3484497a64c5e5f83c1b3ebbfb09b718bd4c1a80..c227c18b373e3c3173a3102d39bb20d91f1a2c0f 100644
--- a/lib/compiler/implementation/lib/core.dart
+++ b/lib/compiler/implementation/lib/core.dart
@@ -28,6 +28,7 @@
 #source('../../../../corelib/src/list.dart');
 #source('../../../../corelib/src/map.dart');
 #source('../../../../corelib/src/num.dart');
+#source('../../../../corelib/src/object.dart');
 #source('../../../../corelib/src/options.dart');
 #source('../../../../corelib/src/pattern.dart');
 #source('../../../../corelib/src/queue.dart');
@@ -46,11 +47,3 @@ void print(var obj) {
     Primitives.printString(obj.toString());
   }
 }
-
-class Object {
-  String toString() => Primitives.objectToString(this);
-
-  void noSuchMethod(String name, List args) {
-    throw new NoSuchMethodException(this, name, args);
-  }
-}