Cleanups:
- move things around so that each arch doesn't duplicate stuff to do with
  VG_(do_thread_syscall)().
- enum PXState doesn't need to be visible outside vg_proxylwp.c



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3097 a5019735-40e9-0310-863c-91ae7b9d1cf9
3 files changed