### 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

if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected constant name after "const".)")) {
		return nullptr;
	}
	constant->identifier = parse_identifier();
	if (match(GDScriptTokenizer::Token::COLON)) {
		if (check((GDScriptTokenizer::Token::EQUAL))) {
			
			constant->infer_datatype = true;
		} else {
			
			constant->datatype_specifier = parse_type();
		}
	}
	if (consume(GDScriptTokenizer::Token::EQUAL, R"(Expected initializer after constant name.)")) {
		
		constant->initializer = parse_expression(false);
		if (constant->initializer == nullptr) {
			push_error(R"(Expected initializer expression for constant.)");
			complete_extents(constant);
			return nullptr;
		}
	} else {
		complete_extents(constant);
		return nullptr;
	}
	complete_extents(constant);
	end_statement("constant declaration");
	return constant;
}
GDScriptParser::ParameterNode *GDScriptParser::parse_parameter() {