Fix bug in Tast_mapper: bad recursion in module_binding (found by Corentin De Souza).
Fix bug in Tast_mapper: bad recursion in module_binding (found by Corentin De Souza).

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