(diagnostic
  (schema slovo.diagnostic)
  (version 1)
  (severity error)
  (code InvalidEnumMatchArm)
  (message "`Color.Red` match arm does not have a payload to bind")
  (file "<fixture>")
  (span
    (bytes 84 103)
    (range 8 6 8 25)
  )
  (expected "(Color.Red)")
)