### Godot version

4.0 RC 3

### System information

Macbook m1

### Issue description

If I normally use:
```
Skeleton2D.new()
```

if works.

If I use:
```
@export_group("Skeleton2D")
...
Skeleton2D.new()
```

I get error: `Invalid call. Nonexistent function 'new' in base 'Nil'.`

### Steps to reproduce

- Run a script where you have `@export_group` with same name as a node class name that you use `.new()` on.

```
extends Node2D
class_name Test

@export_group("Skeleton2D")

# Called when the node enters the scene tree for the first time.
func _ready():
	var skeleton = Skeleton2D.new()


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta):
	pass
```

### Minimal reproduction project

[BugNew.zip](https://github.com/godotengine/godot/files/10818936/BugNew.zip)

}
				}
#endif 
			} else {
				GDScriptInstance *gi = static_cast<GDScriptInstance *>(si);
				gi->reload_members();
			}
			E = N;
		}
	}
#endif 
	has_static_data = p_class->has_static_data;
	for (int i = 0; i < p_class->members.size(); i++) {
		if (p_class->members[i].type != GDScriptParser::ClassNode::Member::CLASS) {
			continue;
		}
		const GDScriptParser::ClassNode *inner_class = p_class->members[i].m_class;
		StringName name = inner_class->identifier->name;
		GDScript *subclass = p_script->subclasses[name].ptr();
		Error err = _compile_class(subclass, inner_class, p_keep_state);
		if (err) {
			return err;
		}
		has_static_data = has_static_data || inner_class->has_static_data;
	}
	p_script->_init_rpc_methods_properties();
	p_script->valid = true;
	return OK;
}
void GDScriptCompiler::convert_to_initializer_type(Variant &p_variant, const GDScriptParser::VariableNode *p_node) {