(diagnostic
  (schema slovo.diagnostic)
  (version 1)
  (severity error)
  (code MutableArrayLocalUnsupported)
  (message "first-pass arrays can be stored only in immutable locals")
  (file "<fixture>")
  (span
    (bytes 42 48)
    (range 5 8 5 14)
  )
  (hint "declare array locals with `let`")
)