### 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
p_delimiters->push_back("#");
}
void GDScriptLanguage::get_doc_comment_delimiters(List<String> *p_delimiters) const {
	p_delimiters->push_back("##");
}
void GDScriptLanguage::get_string_delimiters(List<String> *p_delimiters) const {
	p_delimiters->push_back("\" \"");
	p_delimiters->push_back("' '");
	p_delimiters->push_back("\"\"\" \"\"\"");
	p_delimiters->push_back("''' '''");
	
}
bool GDScriptLanguage::is_using_templates() {
	return true;
}
Ref<Script> GDScriptLanguage::make_template(const String &p_template, const String &p_class_name, const String &p_base_class_name) const {
	Ref<GDScript> scr;
	scr.instantiate();
	String processed_template = p_template;
	bool type_hints = false;
#ifdef TOOLS_ENABLED
	type_hints = EDITOR_GET("text_editor/completion/add_type_hints");
#endif
	if (!type_hints) {
		processed_template = processed_template.replace(": int", "")
									 .replace(": Shader.Mode", "")
									 .replace(": VisualShader.Type", "")
									 .replace(": float", "")
									 .replace(": String", "")