tsan: add disabled test case for issue 87



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@224422 91177308-0d34-0410-b5e6-96231b3b80d8
[msan] Stop calling pthread_getspecific in signal handlers.

pthread_getspecific is not async-signal-safe.

MsanThread pointer is now stored in a TLS variable, and the TSD slot
is used only for its destructor, and never from a signal handler.

This should fix intermittent CHECK failures in MsanTSDSet.



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@224423 91177308-0d34-0410-b5e6-96231b3b80d8