### 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
last_assign_line = local.constant->initializer->end_line;
					last_assigned_expression = local.constant->initializer;
				}
				break;
			case GDScriptParser::SuiteNode::Local::PARAMETER:
				if (local.parameter->initializer) {
					last_assign_line = local.parameter->initializer->end_line;
					last_assigned_expression = local.parameter->initializer;
				}
				is_function_parameter = true;
				break;
			default:
				break;
		}
	}
	while (suite) {
		for (int i = 0; i < suite->statements.size(); i++) {
			if (suite->statements[i]->end_line >= p_context.current_line) {
				break;
			}
			switch (suite->statements[i]->type) {
				case GDScriptParser::Node::ASSIGNMENT: {
					const GDScriptParser::AssignmentNode *assign = static_cast<const GDScriptParser::AssignmentNode *>(suite->statements[i]);
					if (assign->end_line > last_assign_line && assign->assignee && assign->assigned_value && assign->assignee->type == GDScriptParser::Node::IDENTIFIER) {
						const GDScriptParser::IdentifierNode *id = static_cast<const GDScriptParser::IdentifierNode *>(assign->assignee);
						if (id->name == p_identifier->name && id->source == p_identifier->source) {
							last_assign_line = assign->assigned_value->end_line;
							last_assigned_expression = assign->assigned_value;
						}
					}