Clean up LookupIterator::Configuration naming

src/json-stringifier.h

Index: src/json-stringifier.h
diff --git a/src/json-stringifier.h b/src/json-stringifier.h
index 1970c2debc5bee05c2a555ada95d6b519d052232..1b108cece199c0b01c488837655318aef721c2e0 100644
--- a/src/json-stringifier.h
+++ b/src/json-stringifier.h
@@ -340,7 +340,7 @@ void BasicJsonStringifier::Append_(const Char* chars) {
 MaybeHandle<Object> BasicJsonStringifier::ApplyToJsonFunction(
     Handle<Object> object, Handle<Object> key) {
   LookupIterator it(object, tojson_string_,
-                    LookupIterator::CHECK_DERIVED_SKIP_INTERCEPTOR);
+                    LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR);
   Handle<Object> fun;
   ASSIGN_RETURN_ON_EXCEPTION(isolate_, fun, Object::GetProperty(&it), Object);
   if (!fun->IsJSFunction()) return object;