### Godot version

4.0.2

### System information

Windows 10

### Issue description

EDIT: this was fixed by removing the offending files listed with the MRP and then dragging them back in from my desktop after opening the project~

I was developing my game then suddenly this started happening. I can no longer playtest my game.
I am not 100% sure what caused this but I believe at the time I was making a new inherited scene, saved it, then moved some scenes in the FileSystem tab?

![image](https://user-images.githubusercontent.com/75141902/235264827-62419c7d-963b-4002-9452-a6493a9bfe25.png)


### Steps to reproduce

No idea aaa- x-x

### Minimal reproduction project

Since I have no idea what caused it here's my early project :'D
https://drive.google.com/file/d/14JFZ420AelUNjBIth78msHY29rNjB55_/view?usp=share_link

I was working on these when the error occurred:
- Slot_0.tcsn
- Slot_Clickable.tscn
- Slot_Orphan.tscn
- Slot_Orphan.gd

case ClassNode::Member::CLASS:
				print_class(m.m_class);
				break;
			case ClassNode::Member::VARIABLE:
				print_variable(m.variable);
				break;
			case ClassNode::Member::CONSTANT:
				print_constant(m.constant);
				break;
			case ClassNode::Member::SIGNAL:
				print_signal(m.signal);
				break;
			case ClassNode::Member::FUNCTION:
				print_function(m.function);
				break;
			case ClassNode::Member::ENUM:
				print_enum(m.m_enum);
				break;
			case ClassNode::Member::ENUM_VALUE:
				break; 
			case ClassNode::Member::GROUP:
				break; 
			case ClassNode::Member::UNDEFINED:
				push_line("<unknown member>");
				break;
		}
	}
	decrease_indent();
}
void GDScriptParser::TreePrinter::print_constant(ConstantNode *p_constant) {