[msan] Intercept strxfrm.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@208303 91177308-0d34-0410-b5e6-96231b3b80d8
[ASan] Update sanitizer_common and asan test_util headers to support building on Windows

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@208306 91177308-0d34-0410-b5e6-96231b3b80d8