unit bad_clos;

struct FileLike {
    handle: i32,
    fn close(self: Self) -> !void { self.handle = 0; }
    fn drop(self: &mut Self) { self.handle = 0; }
}

fn bad() -> !void {
    let file: FileLike = FileLike{ handle: 7 };
    try file.close();
    file.close();
}