(diagnostic
  (schema slovo.diagnostic)
  (version 1)
  (severity error)
  (code UnsupportedBackendFeature)
  (message "backend does not support `(ptr i32)` in function `id` signature")
  (file "<fixture>")
  (span
    (bytes 16 54)
    (range 4 1 5 5)
  )
  (hint "keep this type in speculative examples until layout and LLVM ABI behavior are implemented")
)