### 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

while (check(GDScriptTokenizer::Token::DEDENT) || check(GDScriptTokenizer::Token::INDENT) || check(GDScriptTokenizer::Token::NEWLINE)) {
			current = tokenizer.scan(); 
		}
		tokenizer.pop_expression_indented_block();
	}
	current_function = previous_function;
	in_lambda = previous_in_lambda;
	lambda->function = function;
	
	can_break = could_break;
	can_continue = could_continue;
	return lambda;
}
GDScriptParser::ExpressionNode *GDScriptParser::parse_type_test(ExpressionNode *p_previous_operand, bool p_can_assign) {
	TypeTestNode *type_test = alloc_node<TypeTestNode>();
	reset_extents(type_test, p_previous_operand);
	update_extents(type_test);
	type_test->operand = p_previous_operand;
	type_test->test_type = parse_type();
	complete_extents(type_test);
	if (type_test->test_type == nullptr) {
		push_error(R"(Expected type specifier after "is".)");
	}
	return type_test;
}
GDScriptParser::ExpressionNode *GDScriptParser::parse_yield(ExpressionNode *p_previous_operand, bool p_can_assign) {
	push_error(R"("yield" was removed in Godot 4. Use "await" instead.)");
	return nullptr;
}
GDScriptParser::ExpressionNode *GDScriptParser::parse_invalid_token(ExpressionNode *p_previous_operand, bool p_can_assign) {