SOURCE_FILE@0..20
  TYPE_ALIAS@0..15
    TYPE_KW@0..4 "type"
    WHITESPACE@4..5 " "
    NAME@5..6
      IDENT@5..6 "F"
    WHITESPACE@6..7 " "
    EQ@7..8 "="
    WHITESPACE@8..9 " "
    UNSAFE_KW@9..15 "unsafe"
  WHITESPACE@15..16 " "
  ERROR@16..17
    L_PAREN@16..17 "("
  ERROR@17..18
    R_PAREN@17..18 ")"
  ERROR@18..19
    SEMICOLON@18..19 ";"
  WHITESPACE@19..20 "\n"
error 15..15: expected `fn`
error 15..15: expected SEMICOLON
error 16..16: expected an item
error 17..17: expected an item
error 18..18: expected an item