error[E02011]: invalid 'friend' declaration
  ┌─ tests/move_check/naming/friend_decl_self.move:3:5
  │
3 │     friend Self;
  │     ^^^^^^^^^^^^
  │     │      │
  │     │      Cannot declare the module itself as a friend
  │     Invalid friend declaration

error[E02011]: invalid 'friend' declaration
  ┌─ tests/move_check/naming/friend_decl_self.move:9:5
  │
9 │     friend 0x43::M;
  │     ^^^^^^^^^^^^^^^
  │     │      │
  │     │      Cannot declare the module itself as a friend
  │     Invalid friend declaration