### Godot version

v4.0.beta.custom_build [1d14c054a]

### System information

Kubuntu 22.10

### Issue description

Regression in master (in beta 10 the following script works correctly).

### Steps to reproduce

```gdscript
@tool
extends EditorScript

func wait(time: float) -> void:
    await get_editor_interface().get_tree().create_timer(time).timeout

func _run() -> void:
    reference()
    # Error: Cannot get return value of call to "wait()" because it returns "void".
    await wait(1.0)
    print("Test")
    unreference()
```

### Minimal reproduction project

N/A
ERR_FAIL_INDEX(p_index, p_class->members.size());
	GDScriptParser::ClassNode::Member &member = p_class->members.write[p_index];
	if (p_source == nullptr && parser->has_class(p_class)) {
		p_source = member.get_source_node();
	}
	if (member.get_datatype().is_resolving()) {
		push_error(vformat(R"(Could not resolve member "%s": Cyclic reference.)", member.get_name()), p_source);
		return;
	}
	if (member.get_datatype().is_set()) {
		return;
	}
	if (!parser->has_class(p_class)) {
		String script_path = p_class->get_datatype().script_path;
		Ref<GDScriptParserRef> parser_ref = get_parser_for(script_path);
		if (parser_ref.is_null()) {
			push_error(vformat(R"(Could not find script "%s" (While resolving "%s").)", script_path, member.get_name()), p_source);
			return;
		}
		Error err = parser_ref->raise_status(GDScriptParserRef::PARSED);
		if (err) {
			push_error(vformat(R"(Could not resolve script "%s": %s (While resolving "%s").)", script_path, error_names[err], member.get_name()), p_source);
			return;
		}
		ERR_FAIL_COND_MSG(!parser_ref->get_parser()->has_class(p_class), R"(Parser bug: Mismatched external parser.)");
		GDScriptAnalyzer *other_analyzer = parser_ref->get_analyzer();
		GDScriptParser *other_parser = parser_ref->get_parser();
		int error_count = other_parser->errors.size();