(diagnostic
  (schema slovo.diagnostic)
  (version 1)
  (severity error)
  (code MalformedTestForm)
  (message "test body forms before the final expression must be local declarations, assignments, or while loops")
  (file "<fixture>")
  (span
    (bytes 33 37)
    (range 4 18 4 22)
  )
  (hint "use `(let name i32 expr)`, `(var name i32 expr)`, `(set name expr)`, or `(while condition body...)` before the final bool expression")
)