Test that OCaml values cannot be accessed without the runtime lock (Foreign).
Test that OCaml values cannot be accessed without the runtime lock (Foreign).

yallop/ocaml-ctypes,whitequark/ocaml-ctypes,dsheets/ocaml-ctypes,yallop/ocaml-ctypes,dsheets/ocaml-ctypes,whitequark/ocaml-ctypes,ocamllabs/ocaml-ctypes,whitequark/ocaml-ctypes,dsheets/ocaml-ctypes,ocamllabs/ocaml-ctypes