[tsan] Filter OS X architectures for unit testing
[tsan] Filter OS X architectures for unit testing

The TSan unit test build currently fails if we're also building the iOS parts of compiler-rt, because `TSAN_SUPPORTED_ARCH` contains ARM64. For unit tests, we need to filter this only to host architecture(s).

Differential Revision: http://reviews.llvm.org/D14604



git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@252873 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt,llvm-mirror/compiler-rt