### Godot version

v4.0.beta17.official [c40020513]

### System information

Apple M1 Max - macOS Ventura 13.1 (22C65)

### Issue description

I am getting an error due to functions no longer returning the correct typed array, when the function concatenates arrays and returns it.

In other words, the following fails:

```
func add_arrays() -> Array[ClassA]:
	var array_1: Array[ClassA] = []
	var array_2: Array[ClassA] = []
	return array_1 + array_2
```

<img width="864" alt="Screenshot 2023-02-02 at 1 02 53 PM" src="https://user-images.githubusercontent.com/905216/216320503-475bf4a1-353e-455c-87d5-69d036db706c.png">

I'm assuming when concatenating, the typing changes to a generic `Array` now? Just a guess. 

### Steps to reproduce

N/A

### Minimal reproduction project

[Godot Crash Project.zip](https://github.com/godotengine/godot/files/10568780/Godot.Crash.Project.zip)

}
		if (is_base) {
			is_base = script_class->base_type.class_type != nullptr;
			if (!is_base && p_base != nullptr) {
				break;
			}
		}
	}
	
	const StringName &native = base.native_type;
	if (class_exists(native)) {
		if (is_constructor) {
			name = "_init";
		}
		MethodInfo method_info;
		if (ClassDB::has_property(native, name)) {
			StringName getter_name = ClassDB::get_property_getter(native, name);
			MethodBind *getter = ClassDB::get_method(native, getter_name);
			if (getter != nullptr) {
				bool has_setter = ClassDB::get_property_setter(native, name) != StringName();
				p_identifier->set_datatype(type_from_property(getter->get_return_info(), false, !has_setter));
				p_identifier->source = GDScriptParser::IdentifierNode::INHERITED_VARIABLE;
			}
			return;
		}
		if (ClassDB::get_method_info(native, name, &method_info)) {
			
			p_identifier->set_datatype(make_callable_type(method_info));
			p_identifier->source = GDScriptParser::IdentifierNode::INHERITED_VARIABLE;
			return;