Add an API to create a detached global object

src/api-natives.h

Index: src/api-natives.h
diff --git a/src/api-natives.h b/src/api-natives.h
index 66901fe965e715918c4d33c61d1f0d2b85a0c647..f5759e4a61d99bcbed296e77d0482bb905fcc397 100644
--- a/src/api-natives.h
+++ b/src/api-natives.h
@@ -37,6 +37,11 @@ class ApiNatives {
                                               Handle<Object> prototype,
                                               ApiInstanceType instance_type);
 
+  static Handle<JSFunction> CreateApiFunctionWithMap(
+      Isolate* isolate, Handle<Object> context_or_undefined,
+      Handle<FunctionTemplateInfo> obj, Handle<Map> initial_map,
+      Handle<Object> prototype, ApiInstanceType instance_type);
+
   static void AddDataProperty(Isolate* isolate, Handle<TemplateInfo> info,
                               Handle<Name> name, Handle<Object> value,
                               PropertyAttributes attributes);