[parrot/parrot] 931071: [cage] more const io api arguments

[GitHub]

  Branch: refs/heads/smoke-me/stringbuilder-gh1123
  Home:   https://github.com/parrot/parrot
  Commit: 9310715908874b315bf97d6b22f40bf866973787
      https://github.com/parrot/parrot/commit/9310715908874b315bf97d6b22f40bf866973787
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2015-01-31 (Sat, 31 Jan 2015)

  Changed paths:
    M include/parrot/io.h
    M include/parrot/platform_interface.h
    M src/io/filehandle.c
    M src/io/io_private.h
    M src/io/pipe.c
    M src/io/socket.c
    M src/io/stringhandle.c
    M src/platform/generic/io.c

  Log Message:
  -----------
  [cage] more const io api arguments

io.h, latform_interface.h, io/filehandle.c, io/io_private.h,
io/pipe.c, io/socket.c, io/stringhandle.c, platform/generic/io.c

not tested on msvc, most ARGMOD annotations do look wrong and need to be improved.
this has only effect on msvc with sal