[compiler-rt] Test fixups for MSVC. (PR #109887)

[Martin Storsjö via llvm-commits]

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@@ -18,6 +18,10 @@
 // it works with the dynamic runtime.
 // XFAIL: target={{.*netbsd.*}} && !asan-dynamic-runtime
 
+#if _MSC_VER && !defined(__clang__)
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mstorsjo wrote:

`defined(_MSC_VER)` (Also please grep for more cases of this in the patch, I probably won't comment on all of them.)

https://github.com/llvm/llvm-project/pull/109887