Addressing Ivan's comments of using INVALID_TYPE in Factory::CreateApiFunctio...

src/objects.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 517 matching lines @@
   JS_BUILTINS_OBJECT_TYPE,
   JS_GLOBAL_PROXY_TYPE,
   JS_ARRAY_TYPE,
   JS_REGEXP_TYPE,
 
   JS_FUNCTION_TYPE,
 
   // Pseudo-types
   FIRST_NONSTRING_TYPE = MAP_TYPE,
   FIRST_TYPE = 0x0,
+  INVALID_TYPE = FIRST_TYPE - 1,
   LAST_TYPE = JS_FUNCTION_TYPE,
   // Boundaries for testing the type is a JavaScript "object".  Note that
   // function objects are not counted as objects, even though they are
   // implemented as such; only values whose typeof is "object" are included.
   FIRST_JS_OBJECT_TYPE = JS_VALUE_TYPE,
   LAST_JS_OBJECT_TYPE = JS_REGEXP_TYPE
 };
 
 
 enum CompareResult {
@@ skipping 3546 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_