// MIR for `slice_iter_next` after PreCodegen

fn slice_iter_next(_1: &mut std::slice::Iter<'_, T>) -> Option<&T> {
    debug it => _1;
    let mut _0: std::option::Option<&T>;

    bb0: {
        _0 = <std::slice::Iter<'_, T> as Iterator>::next(_1) -> bb1;
    }

    bb1: {
        return;
    }
}