Remove compiler warnings on Windows - Bug #11580


innobase/btr/btr0btr.c:
  Remove compiler warnings on Windows - Bug #11580
innobase/btr/btr0cur.c:
  Remove compiler warnings on Windows - Bug #11580
innobase/fil/fil0fil.c:
  Remove compiler warnings on Windows - Bug #11580
innobase/ibuf/ibuf0ibuf.c:
  Remove compiler warnings on Windows - Bug #11580
innobase/log/log0recv.c:
  Remove compiler warnings on Windows - Bug #11580
innobase/os/os0file.c:
  Remove compiler warnings on Windows - Bug #11580
innobase/page/page0page.c:
  Remove compiler warnings on Windows - Bug #11580
innobase/row/row0upd.c:
  Remove compiler warnings on Windows - Bug #11580