[parrot/parrot] 60d557: [cage] const io api arguments

[GitHub]

  Branch: refs/heads/smoke-me/stringbuilder-gh1123
  Home:   https://github.com/parrot/parrot
  Commit: 60d55747a1fcb6ef112080af4ade3d396b064df1
      https://github.com/parrot/parrot/commit/60d55747a1fcb6ef112080af4ade3d396b064df1
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2015-01-30 (Fri, 30 Jan 2015)

  Changed paths:
    M ChangeLog
    M include/parrot/io.h
    M include/parrot/runcore_trace.h
    M src/gc/gc_ms2.c
    M src/gc/gc_private.h
    M src/io/api.c
    M src/io/buffer.c
    M src/io/io_private.h
    M src/io/socket.c
    M src/io/stringhandle.c
    M src/io/utilities.c
    M src/runcore/trace.c

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

also add an easier str dumper for -D100 gc tracings,
currenty only on ms2.