(diagnostic
  (schema slovo.diagnostic)
  (version 1)
  (severity error)
  (code UnsupportedStringConcatenation)
  (message "string concatenation is not supported in the v1.2 runtime value slice")
  (file "<fixture>")
  (span
    (bytes 40 51)
    (range 5 3 5 14)
  )
  (hint "pass immutable string values through lets, parameters, returns, and calls without concatenating them")
)