error[E02001]: duplicate declaration, item, or annotation
  ┌─ tests/move_check/expansion/friend_decl_qualified_duplicates.move:6:5
  │
5 │     friend 0x42::A;
  │     --------------- Friend previously declared here
6 │     friend 0x42::A;
  │     ^^^^^^^^^^^^^^^ Duplicate friend declaration '0x42::A'. Friend declarations in a module must be unique