### Godot version

v4.0.beta13.official [caacade56]

### System information

Windows 8.1

### Issue description

The `Unreachable code (statement after return) in function 'function_name()'` warning is given for functions that do not have unreachable code. The same code does not give this warning in v3.5.stable.official [991bb6ac7].

### Steps to reproduce

```
func warning(i: int) -> void:
  if i == 0:
    pass
  elif i == 1:
    return
  else:
    return
  print("yeah")
```

Removing either the `elif` or the `else` removes the warning.

### Minimal reproduction project

N/A; code in reproduction steps can be placed in any blank gdscript file to trigger the error.
break;
		case AssignmentNode::OP_MODULO:
			push_text("%");
			break;
		case AssignmentNode::OP_POWER:
			push_text("**");
			break;
		case AssignmentNode::OP_BIT_SHIFT_LEFT:
			push_text("<<");
			break;
		case AssignmentNode::OP_BIT_SHIFT_RIGHT:
			push_text(">>");
			break;
		case AssignmentNode::OP_BIT_AND:
			push_text("&");
			break;
		case AssignmentNode::OP_BIT_OR:
			push_text("|");
			break;
		case AssignmentNode::OP_BIT_XOR:
			push_text("^");
			break;
		case AssignmentNode::OP_NONE:
			break;
	}
	push_text("= ");
	print_expression(p_assignment->assigned_value);
	push_line();
}
void GDScriptParser::TreePrinter::print_await(AwaitNode *p_await) {