SOURCE_FILE@0..15
  FN@0..14
    FN_KW@0..2 "fn"
    WHITESPACE@2..3 " "
    NAME@3..8
      IDENT@3..8 "r#foo"
    PARAM_LIST@8..10
      L_PAREN@8..9 "("
      R_PAREN@9..10 ")"
    WHITESPACE@10..11 " "
    BLOCK_EXPR@11..14
      L_CURLY@11..12 "{"
      WHITESPACE@12..13 "\n"
      R_CURLY@13..14 "}"
  WHITESPACE@14..15 "\n"