// Module B authors same-name `Box` and `Node` shadows that reference EACH OTHER.
// B's `Box` has a FORWARD ref to B's `Node` (declared after it), and B's `Node`
// back-refs B's `Box`. Both forward and mutual refs must resolve to B's OWN
// nominal TypeIds, not the first same-name authors in A.
Box  :: struct { y: s64; peer: *Node; }
Node :: struct { m: s64; owner: *Box; }
b_test :: () -> s64 {
    nd := Node.{ m = 99, owner = null };
    bx := Box.{ y = 7, peer = @nd };
    // Reads B's Node.m (99); pre-fix the forward ref bound to A's Node (which has
    // field `n`, not `m`) → "field 'm' not found on type 'Node'".
    return bx.peer.*.m;
}