Fix x86 C Sharp dynlink tests on 64-bit Windows
Fix x86 C Sharp dynlink tests on 64-bit Windows

yunxing/ocaml,yunxing/ocaml,gerdstolpmann/ocaml,yunxing/ocaml,gerdstolpmann/ocaml,msprotz/ocaml,gerdstolpmann/ocaml,msprotz/ocaml,gerdstolpmann/ocaml,msprotz/ocaml,msprotz/ocaml,yunxing/ocaml,gerdstolpmann/ocaml,msprotz/ocaml,yunxing/ocaml