### 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
p_identifier->source = GDScriptParser::IdentifierNode::UNDEFINED_SOURCE;
	
	
	Variant::Type builtin_type = GDScriptParser::get_builtin_type(name);
	if (builtin_type != Variant::OBJECT && builtin_type < Variant::VARIANT_MAX) {
		if (can_be_builtin) {
			p_identifier->set_datatype(make_builtin_meta_type(builtin_type));
			return;
		} else {
			push_error(R"(Builtin type cannot be used as a name on its own.)", p_identifier);
		}
	}
	if (class_exists(name)) {
		p_identifier->set_datatype(make_native_meta_type(name));
		return;
	}
	if (ScriptServer::is_global_class(name)) {
		p_identifier->set_datatype(make_global_class_meta_type(name, p_identifier));
		return;
	}
	
	
	if (ProjectSettings::get_singleton()->has_autoload(name)) {
		const ProjectSettings::AutoloadInfo &autoload = ProjectSettings::get_singleton()->get_autoload(name);
		if (autoload.is_singleton) {
			
			GDScriptParser::DataType result;
			result.kind = GDScriptParser::DataType::NATIVE;
			result.type_source = GDScriptParser::DataType::ANNOTATED_EXPLICIT;
			if (ResourceLoader::get_resource_type(autoload.path) == "GDScript") {