tsan: improve the test
remove TSAN_OPTIONS from the test, so that it runs in the presubmit script
add a CHECK, so that it can run with FileCheck as well



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@200972 91177308-0d34-0410-b5e6-96231b3b80d8