error[E02004]: invalid 'module' declaration
  ┌─ tests/move_check/dependencies/use_friend_direct.move:8:9
  │
5 │     friend B;
  │     --------- '0x2::B' is a friend of '0x2::A'
  ·
8 │         B::b()
  │         ^^^^ '0x2::B' uses '0x2::A'. This 'use' relationship creates a dependency cycle.