Final commit for the initial modularisation pass:

- Broke part of m_scheduler off into a new module m_threadstate.  It
  contains ThreadState, VG_(threads)[] and some basic operations on the
  thread table.  All simple stuff, the complex stuff stays in m_scheduler.
  This avoids lots of circular dependencies between m_scheduler and other
  modules.

- Managed to finally remove core.h and tool.h, double hurrah!

- Introduced pub_tool_basics.h and pub_core_basics.h, one of which is
  include by every single C file.

- Lots of little cleanups and changes related to the above.

- I even did a small amount of documentation updating.




git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3944 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/m_stacktrace.c b/coregrind/m_stacktrace.c
index 2f5fb83..38adf15 100644
--- a/coregrind/m_stacktrace.c
+++ b/coregrind/m_stacktrace.c
@@ -28,7 +28,8 @@
    The GNU General Public License is contained in the file COPYING.
 */
 
-#include "core.h"
+#include "pub_core_basics.h"
+#include "pub_core_threadstate.h"
 #include "pub_core_aspacemgr.h"
 #include "pub_core_libcbase.h"
 #include "pub_core_libcassert.h"