### 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 false;
			} break;
			default: {
				return false;
			}
		}
	}
	return false;
}
static void _find_enumeration_candidates(GDScriptParser::CompletionContext &p_context, const String &p_enum_hint, HashMap<String, ScriptLanguage::CodeCompletionOption> &r_result) {
	if (!p_enum_hint.contains(".")) {
		
		StringName current_enum = p_enum_hint;
		if (p_context.current_class && p_context.current_class->has_member(current_enum) && p_context.current_class->get_member(current_enum).type == GDScriptParser::ClassNode::Member::ENUM) {
			const GDScriptParser::EnumNode *_enum = p_context.current_class->get_member(current_enum).m_enum;
			for (int i = 0; i < _enum->values.size(); i++) {
				ScriptLanguage::CodeCompletionOption option(_enum->values[i].identifier->name, ScriptLanguage::CODE_COMPLETION_KIND_ENUM);
				r_result.insert(option.display, option);
			}
		} else {
			for (int i = 0; i < CoreConstants::get_global_constant_count(); i++) {
				if (CoreConstants::get_global_constant_enum(i) == current_enum) {
					ScriptLanguage::CodeCompletionOption option(CoreConstants::get_global_constant_name(i), ScriptLanguage::CODE_COMPLETION_KIND_ENUM);
					r_result.insert(option.display, option);
				}
			}
		}
	} else {