Fix meta_class, sis class instance variables and class methods

after some serious recursive thinking it now actually makes sense.
The key was to change the actual type of the class that the meta_class manages
For objects it's (still) ok just to change the instance_type, but since the class object exists and has type, when adding instance variables, that actual type has to change

test/parfait/test_meta_class.rb

@@ -36,15 +36,18 @@ module Parfait
       assert_raises{ @try.add_instance_method(nil)}
     end
     def test_add_instance_variable_changes_type
-      before = @space.get_class.instance_type
-      @space.get_class.add_instance_variable(:counter , :Integer)
-      assert before != @space.get_class.instance_type
+      before = @try.instance_type
+      @try.add_instance_variable(:counter , :Integer)
+      assert before != @try.instance_type
     end
     def test_add_instance_variable_changes_type_hash
-      before = @space.get_class.instance_type.hash
-      @space.get_class.add_instance_variable(:counter , :Integer)
-      assert before != @space.get_class.instance_type.hash
+      before = @try.instance_type.hash
+      @try.add_instance_variable(:counter , :Integer)
+      assert before != @try.instance_type.hash
+    end
+    def test_add_instance_variable_changes_class_type
+      @try.add_instance_variable(:counter , :Integer)
+      assert_equal @try.clazz.type , @try.instance_type
     end
-
   end
 end