fixing indexes makes test work

forgot my own rule: all parfait works in 1 based lists

lib/soml/parfait/layout.soml

@@ -1,7 +1,7 @@
 class Layout < Object
 
   Class object_class()
-    get_internal(1)
+    get_internal(2)
   end
 
 end

lib/soml/parfait/object.soml

@@ -1,7 +1,7 @@
 class Object
 
   Layout get_layout()
-    return get_internal(0)
+    return get_internal(1)
   end
 
   Class get_class()