part 2: fix regression (extraneous moves) caused by previous Cconst_blockheader patch
part 2: fix regression (extraneous moves) caused by previous Cconst_blockheader patch

git-svn-id: e7e61699ce1738538ffebb75374fbea0924bc775@14649 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02

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