Use EmbedderHeapTracer instead of object grouping when trace_embedder_heap flag is set

src/api-natives.cc

Index: src/api-natives.cc
diff --git a/src/api-natives.cc b/src/api-natives.cc
index adf4b6af576431d8d2d7c078a3fcbaffcaca8c1b..4d3dc4d5401d9ddf75b687456887dcec111b7d02 100644
--- a/src/api-natives.cc
+++ b/src/api-natives.cc
@@ -545,7 +545,7 @@ Handle<JSFunction> ApiNatives::CreateApiFunction(
         if (!obj->needs_access_check() &&
             obj->named_property_handler()->IsUndefined() &&
             obj->indexed_property_handler()->IsUndefined()) {
-          type = JS_OBJECT_TYPE;
+          type = JS_API_OBJECT_TYPE;
         } else {
           type = JS_SPECIAL_API_OBJECT_TYPE;
         }