### Godot version

v4.0.3.stable.official [5222a99f5]
Master [6101240231600c871f5c5473872532c68ea3268c] (confirmed by https://github.com/godotengine/godot/issues/77666#issuecomment-1568952502)

### System information

Window 10

### Issue description

References are not unreferenced at the end of `if` scopes.

### Steps to reproduce

Copy, paste and run the snippet below, check the results:

```gdscript
extends Node


func _ready() -> void:
  var ref := RefCounted.new()
  var ref_count : int

  # OK
  ref_count = ref.get_reference_count()
  print('Expected: 1, Result: %d' % ref_count)

  # OK
  if true:
    var temp := ref
    temp = null

  ref_count = ref.get_reference_count()
  print('Expected: 1, Result: %d' % ref_count)

  # FAIL
  if true:
    var temp := ref

  ref_count = ref.get_reference_count()
  print('Expected: 1, Result: %d' % ref_count)
```

Output example:

```
Expected: 1, Result: 1
Expected: 1, Result: 1
Expected: 1, Result: 2
```

### Minimal reproduction project

N/A
break;
		case Node::RETURN:
			print_return(static_cast<ReturnNode *>(p_statement));
			break;
		case Node::BREAK:
			push_line("Break");
			break;
		case Node::CONTINUE:
			push_line("Continue");
			break;
		case Node::PASS:
			push_line("Pass");
			break;
		case Node::BREAKPOINT:
			push_line("Breakpoint");
			break;
		case Node::ASSIGNMENT:
			print_assignment(static_cast<AssignmentNode *>(p_statement));
			break;
		default:
			if (p_statement->is_expression()) {
				print_expression(static_cast<ExpressionNode *>(p_statement));
				push_line();
			} else {
				push_line(vformat("<unknown statement %d>", p_statement->type));
			}
			break;
	}
}
void GDScriptParser::TreePrinter::print_suite(SuiteNode *p_suite) {