Rollup fixes for Helgrind:

* tracking of barriers: add support for resizable barriers

* resync TSan-compatible client requests with latest changes

* add direct access to the client requests used in hg_intercepts.c

* add a client request pair to disable and re-enable tracking
  of arbitrary address ranges



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11062 a5019735-40e9-0310-863c-91ae7b9d1cf9
5 files changed