Properly set up virtual calls for extensions

core/extension/native_extension.cpp

@@ -154,6 +154,7 @@ void NativeExtension::_register_extension_class(const GDNativeExtensionClassLibr
 	extension->native_extension.create_instance = p_extension_funcs->create_instance_func;
 	extension->native_extension.set_object_instance = p_extension_funcs->object_instance_func;
 	extension->native_extension.free_instance = p_extension_funcs->free_instance_func;
+	extension->native_extension.get_virtual = p_extension_funcs->get_virtual_func;
 
 	ClassDB::register_extension_class(&extension->native_extension);
 }

core/object/make_virtuals.py

@@ -1,8 +1,8 @@
 proto = """
 #define GDVIRTUAL$VER($RET m_name $ARG) \\
-GDNativeExtensionClassCallVirtual _gdvirtual_##m_name = (_get_extension() && _get_extension()->get_virtual) ? _get_extension()->get_virtual(_get_extension()->class_userdata, #m_name) : (GDNativeExtensionClassCallVirtual) nullptr;\\
 StringName _gdvirtual_##m_name##_sn = #m_name;\\
 bool _gdvirtual_##m_name##_call($CALLARGS) $CONST { \\
+    GDNativeExtensionClassCallVirtual _gdvirtual_##m_name = (_get_extension() && _get_extension()->get_virtual) ? _get_extension()->get_virtual(_get_extension()->class_userdata, #m_name) : (GDNativeExtensionClassCallVirtual) nullptr;\\
 	ScriptInstance *script_instance = ((Object*)(this))->get_script_instance();\\
 	if (script_instance) {\\
 		Callable::CallError ce; \\