Make VG_USERREQ__PTHREAD_YIELD actually yield the thread.  This used
to work but was broken in a subtle way by the cleanup of rev 1.70.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@488 a5019735-40e9-0310-863c-91ae7b9d1cf9
2 files changed