On Darwin, we're running the TSan unit tests without interceptors. To make sure TSan observes all the pthread events (thread creating, thread join, condvar signal, etc.) in tsan_posix.cc, we should call the pthread interceptors directly, as we already do in tsan_test_util_posix.cc. This fixes some flaky failures on Darwin bots.
Differential Revision: https://reviews.llvm.org/D26639
llvm-svn: 287026
Kuba Brecka