Cleanup the core/object.dart file.

lib/core/object.dart

Index: lib/core/object.dart
diff --git a/lib/core/object.dart b/lib/core/object.dart
index 1e4505936dd448d572a537082e2a0a49a2791513..d3347f848798bd6d9d3881094559215161c93dc3 100644
--- a/lib/core/object.dart
+++ b/lib/core/object.dart
@@ -58,17 +58,8 @@ class Object {
   external Dynamic noSuchMethod(String name, List args);
 
   /**
-   * Returns a representation of the runtime type of the object.
+   * A representation of the runtime type of the object.
    */
-  external Type runtimeType();
+  external Type get runtimeType;

[Ivan Posva, 2012/09/27 00:02:14]

Any particular reason why you did not have to update the corresponding language
tests? As far as I understand they should now be failing.

[ngeoffray, 2012/09/27 08:29:35]

Right, thanks for noticing Ivan. The test was actually not being run because it
didn't have the _test suffix. Fixed in:
https://codereview.chromium.org/10996043/

 }
 
-/**
- * Representation of a type.
- */
-abstract class Type {}
-
-/**
- * Check whether two references are to the same object.
- */
-bool identical(Object a, Object b) => a === b;