; Minimal repro for the #55-cutover drop-soundness crash: a string
; LITERAL passed by value into an `(own (con Str))` parameter that the
; callee drops (the param is not consumed/returned, so the Own-param
; drop path emits `ailang_rc_dec` on it).
;
; The literal is a `StrRep::Static` rodata constant with NO rc_header,
; so `ailang_rc_dec` reads the 8 bytes before the constant as a fake
; refcount and `free()`s a static address -> SIGSEGV.
;
; `usestr` (returns `s`) does NOT crash because the param is consumed,
; not dropped. `take_int` (own Int) does NOT crash because Int is a
; value type. The crash is specific to a static Str literal flowing
; into a dropped owned Str parameter.
;
; Expected stdout: `0`

(module own_str_arg_drop

  (fn take
    (doc "Owned Str param, ignored (dropped in callee), returns 0.")
    (type (fn-type (params (own (con Str))) (ret (own (con Int)))))
    (params s)
    (body 0))

  (fn main
    (type (fn-type (params) (ret (own (con Unit))) (effects IO)))
    (params)
    (body
      (seq (app print (app take "hi")) (do io/print_str "\n")))))