(diagnostic
  (schema slovo.diagnostic)
  (version 1)
  (severity error)
  (code UnsupportedOptionResultEquality)
  (message "option/result equality is not supported in the current value-flow slice")
  (file "<fixture>")
  (span
    (bytes 41 83)
    (range 5 7 5 49)
  )
  (hint "observe the tag with `is_some`, `is_none`, `is_ok`, or `is_err`")
)