also support Pexp_setfield
also support Pexp_setfield

git-svn-id: e3b761aeec39b90959aaa028cdee573db267ef84@12943 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02

gerdstolpmann/ocaml,yunxing/ocaml,gerdstolpmann/ocaml,yallop/camlp4,hhugo/camlp4,eliberis/ocaml,msprotz/ocaml,gerdstolpmann/ocaml,msprotz/ocaml,eliberis/ocaml,gerdstolpmann/ocaml,yunxing/ocaml,gerdstolpmann/ocaml,eliberis/ocaml,yunxing/ocaml,msprotz/ocaml,chambart/camlp4,eliberis/ocaml,yunxing/ocaml,eliberis/ocaml,yunxing/ocaml,msprotz/ocaml,msprotz/ocaml