* tree-ssa-threadupdate.c: Do not include "tm.h" or "tm_p.h".

        * tree-ssa-threadupdate.c: Include "dbgcnt.h".
        (register_jump_thread): Add "registered_jump_thread" debug counter support.
        * dbgcnt.def (registered_jump_thread): New debug counter.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@203825 138bc75d-0d04-0410-961f-82ee72b054a4