### Godot version

4.0 rc1

### System information

Windows 11, GTX 1080Ti, Vulkan

### Issue description

Automplete can't find any variables and methods on custom classes when the nodes are loaded with `@onready`:

simple_rotate.gd:
```gdscript
extends Node2D
class_name SimpleRotate

@export var shouldRotate : bool = true
```

machine.gd:
```gdscript
@onready var wheel1 : SimpleRotate = $Wheel

func start_motor():
	wheel1.sho... # Doesn't autocomplete, it can't find shouldRotate 
```

If I add another cast like below, autocomplete does work:
machine.gd:
```gdscript
@onready var wheel1 : SimpleRotate = $Wheel as SimpleRotate

func start_motor():
	wheel1.shouldRotate = true # Autocomplete works
```

To make things even weirder, it does work if I make Wheel into a unique name and access it using %:
machine.gd:
```gdscript
@onready var wheel1 : SimpleRotate = $"%Wheel"

func start_motor():
	wheel1.shouldRotate = true # Autocomplete works
```


### Steps to reproduce

- Create a script with a class_name
- Add that script to a node
- Create another script referencing the node with the type of the script
- Try to let automcomplete find any methods or variables on the script with the class_name
- Notice that it fails

### Minimal reproduction project

N/A
return true;
						case GDScriptParser::ClassNode::Member::GROUP:
							return false; 
						case GDScriptParser::ClassNode::Member::UNDEFINED:
							return false; 
					}
					return false;
				}
				base_type = base_type.class_type->base_type;
				break;
			case GDScriptParser::DataType::SCRIPT: {
				Ref<Script> scr = base_type.script_type;
				if (scr.is_valid()) {
					HashMap<StringName, Variant> constants;
					scr->get_constants(&constants);
					if (constants.has(p_identifier)) {
						r_type = _type_from_variant(constants[p_identifier]);
						return true;
					}
					List<PropertyInfo> members;
					if (is_static) {
						scr->get_property_list(&members);
					} else {
						scr->get_script_property_list(&members);
					}
					for (const PropertyInfo &prop : members) {
						if (prop.name == p_identifier) {
							r_type = _type_from_property(prop);
							return true;
						}