//# run
main() {
    let x: u64;
    let x_ref: &u64;
label b0:
    x = 5;
    x_ref = &x;
    assert(*(copy(x_ref)) == 5, 42);
    assert(*(move(x_ref)) == 5, 42);
    assert(*(&mut x) == 5, 42);
    return;
}