Fix post-amd64-commit x86 breakage:
- remove warnings from vg_scheduler.c by using (UWord) casts rather than
  64-bit-assuming (ULong) casts.
- move deref_Addr() to x86-linux/syscalls.c, where it's now used.

Also got rid of the ancient SIGNAL_SIMULATION flag, which is a remnant of very
early days -- things now only work with signal simulation, so no point in
keeping it around.

Also make addrcheck/tests/fprw work again now that --single-step is
dead.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3137 a5019735-40e9-0310-863c-91ae7b9d1cf9
4 files changed