(diagnostic
  (schema slovo.diagnostic)
  (version 1)
  (severity error)
  (code DuplicateFunction)
  (message "compiler-known callable `__glagol_string_byte_at_result` is reserved")
  (file "<fixture>")
  (span
    (bytes 16 117)
    (range 4 1 5 19)
  )
)