### 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
}
		case GDScriptParser::COMPLETION_ASSIGN:
		case GDScriptParser::COMPLETION_CALL_ARGUMENTS:
		case GDScriptParser::COMPLETION_IDENTIFIER:
		case GDScriptParser::COMPLETION_PROPERTY_METHOD: {
			GDScriptParser::DataType base_type;
			if (context.current_class) {
				if (context.type != GDScriptParser::COMPLETION_SUPER_METHOD) {
					base_type = context.current_class->get_datatype();
				} else {
					base_type = context.current_class->base_type;
				}
			} else {
				break;
			}
			if (!is_function && context.current_suite) {
				
				const GDScriptParser::SuiteNode *suite = context.current_suite;
				while (suite) {
					if (suite->has_local(p_symbol)) {
						r_result.type = ScriptLanguage::LOOKUP_RESULT_SCRIPT_LOCATION;
						r_result.location = suite->get_local(p_symbol).start_line;
						return OK;
					}
					suite = suite->parent_block;
				}
			}
			if (_lookup_symbol_from_base(base_type, p_symbol, is_function, r_result) == OK) {
				return OK;
			}