### 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
Callable::CallError ce;
				bool v1_use_value = p1.value.get_type() != Variant::NIL && p1.value.get_type() != Variant::OBJECT;
				Variant d1;
				Variant::construct(p1.type.builtin_type, d1, nullptr, 0, ce);
				Variant d2;
				Variant::construct(p2.type.builtin_type, d2, nullptr, 0, ce);
				Variant v1 = (v1_use_value) ? p1.value : d1;
				bool v2_use_value = p2.value.get_type() != Variant::NIL && p2.value.get_type() != Variant::OBJECT;
				Variant v2 = (v2_use_value) ? p2.value : d2;
				
				if ((op->variant_op == Variant::OP_DIVIDE || op->variant_op == Variant::OP_MODULE) && v2.get_type() == Variant::INT) {
					v2 = 1;
					v2_use_value = false;
				}
				if (op->variant_op == Variant::OP_DIVIDE && v2.get_type() == Variant::FLOAT) {
					v2 = 1.0;
					v2_use_value = false;
				}
				Variant res;
				bool valid;
				Variant::evaluate(op->variant_op, v1, v2, res, valid);
				if (!valid) {
					found = false;
					break;
				}
				r_type = _type_from_variant(res);
				if (!v1_use_value || !v2_use_value) {
					r_type.value = Variant();
					r_type.type.is_constant = false;
				}