SOURCE_FILE@0..11
  TRAIT@0..10
    TRAIT_KW@0..5 "trait"
    WHITESPACE@5..6 " "
    NAME@6..7
      IDENT@6..7 "T"
    WHITESPACE@7..8 " "
    ASSOC_ITEM_LIST@8..10
      L_CURLY@8..9 "{"
      R_CURLY@9..10 "}"
  WHITESPACE@10..11 "\n"
