cfi: Enable ThinLTO tests on Windows.
cfi: Enable ThinLTO tests on Windows.

We now avoid using absolute symbols on Windows (D37407 and D37408),
so this should work.

Fixes PR32770.

Differential Revision: https://reviews.llvm.org/D37883

git-svn-id: c199f293c43da69278bea8e88f92242bf3aa95f7@313379 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