### Godot version

Godot 4.0 RC 2

### System information

Windows 11

### Issue description

As the title states you get no autocompletion when statically typing.
Of course the code still works, but it shouldn't be neccessary to cast an object to a type it already is.

### Steps to reproduce

1. Create child class with some functionality
![image](https://user-images.githubusercontent.com/100119945/220173809-0b2b2788-d986-4fa7-815c-444268d09c32.png)

2. Get node in parent class and call childs function
![image](https://user-images.githubusercontent.com/100119945/220174167-5ff3c8e9-863e-4fbd-a3cf-d88d34597b39.png)



### Minimal reproduction project

N/A
if (identifier_node->next != nullptr && identifier_node->next->type == GDScriptParser::ClassNode::Node::GET_NODE) {
						get_node = static_cast<GDScriptParser::GetNodeNode *>(identifier_node->next);
					}
				} break;
				default: {
				} break;
			}
		} break;
		default: {
		} break;
	}
	if (get_node != nullptr) {
		const Object *node = p_context.base->call("get_node_or_null", NodePath(get_node->full_path));
		if (node != nullptr) {
			if (r_base != nullptr) {
				*r_base = node;
			}
			r_base_type.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT;
			r_base_type.kind = GDScriptParser::DataType::NATIVE;
			r_base_type.builtin_type = Variant::OBJECT;
			r_base_type.native_type = node->get_class_name();
			return true;
		}
	}
	return false;
}
static void _find_call_arguments(GDScriptParser::CompletionContext &p_context, const GDScriptParser::Node *p_call, int p_argidx, HashMap<String, ScriptLanguage::CodeCompletionOption> &r_result, bool &r_forced, String &r_arghint) {
	if (p_call->type == GDScriptParser::Node::PRELOAD) {
		if (p_argidx == 0 && bool(EDITOR_GET("text_editor/completion/complete_file_paths"))) {
			_get_directory_contents(EditorFileSystem::get_singleton()->get_filesystem(), r_result);