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

Review URL: http://codereview.chromium.org/7925

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@575 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/factory.cc

@@ -685,7 +685,7 @@ Handle<JSFunction> Factory::CreateApiFunction(
   }
 
   int instance_size = kPointerSize * internal_field_count;
-  InstanceType type = JS_OBJECT_TYPE;  // initialize to a valid value
+  InstanceType type = INVALID_TYPE;
   switch (instance_type) {
     case JavaScriptObject:
       type = JS_OBJECT_TYPE;
@@ -700,9 +700,9 @@ Handle<JSFunction> Factory::CreateApiFunction(
       instance_size += JSGlobalProxy::kSize;
       break;
     default:
-      ASSERT(false);
       break;
   }
+  ASSERT(type != INVALID_TYPE);
 
   Handle<JSFunction> result =
       Factory::NewFunction(Factory::empty_symbol(), type, instance_size,

src/objects.h

@@ -535,6 +535,7 @@ enum InstanceType {
   // 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