[XRay][tools] Disable windows for tests that use an unsupported shell…

… redirect.

The tests are filechecking against stderr and use some magic to make stdout go
away and pipe stderr to FileCheck. This broke bots on windows.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@312739 91177308-0d34-0410-b5e6-96231b3b80d8

test/tools/llvm-xray/X86/stack-empty-case.yaml

@@ -1,3 +1,8 @@
+# The redirects used in the commands to FileCheck against stderr cannot be used
+# with a windows test.
+#
+# UNSUPPORTED: windows
+
 #RUN: (llvm-xray stack %s 2>&1 || echo "Checking Command Failed") | FileCheck %s
 ---
 header:

test/tools/llvm-xray/X86/stack-keep-going.yaml

@@ -1,3 +1,8 @@
+# The redirects used in the commands to FileCheck against stderr cannot be used
+# with a windows test.
+#
+# UNSUPPORTED: windows
+
 #RUN: (llvm-xray stack %s 2>&1 1>&- || echo "Check Command Failed") | FileCheck --check-prefix HALT %s
 #RUN: (llvm-xray stack -k %s 2>&1 && echo "Check Command Succeeded") | FileCheck --check-prefix KEEP-GOING-SUCCEEDS %s
 #RUN: llvm-xray stack -k %s | FileCheck --check-prefix KEEP-GOING %s