tsan: actually parse verbofity flag



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@192704 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: use verbosity flag in sanitizer_common code directly
now it's available from common_flags()



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@192705 91177308-0d34-0410-b5e6-96231b3b80d8
tsan: remove __sanitizer_set_report_fd function from public interface
__sanitizer_set_report_path now accepts two special values - stderr and stdout
logging to other file descriptors is not supported anymore,
it's fragile in presence of multiple processes, fork, etc



git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@192706 91177308-0d34-0410-b5e6-96231b3b80d8