//# publish
module 0x42.N {
}

//# publish
module 0x42.M {
    friend 0x42.N;
    public(friend) foo() {
    label b0:
        return;
    }
}

//# publish
module 0x42.M {
    // cannot remove friends
    public(friend) foo() {
    label b0:
        return;
    }
}