[unittests] Fix up test after rL313156

Bot: http://green.lab.llvm.org/green/job/clang-stage1-cmake-RA-incremental/42421

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@313163 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/unittests/Support/Host.cpp b/unittests/Support/Host.cpp
index 4f895e7163c59d0f59eff9186ff39ff5864ca6ee..361a683461ee093a90f7a906bd970bc51a489f61 100644 (file)
--- a/unittests/Support/Host.cpp
+++ b/unittests/Support/Host.cpp
@@ -144,8 +144,9 @@ TEST_F(HostTest, getMacOSHostVersion) {
   const char *SwVersPath = "/usr/bin/sw_vers";
   const char *argv[] = {SwVersPath, "-productVersion", nullptr};
   StringRef OutputPath = OutputFile.str();
-  const StringRef *Redirects[] = {/*STDIN=*/nullptr, /*STDOUT=*/&OutputPath,
-                                  /*STDERR=*/nullptr};
+  const Optional<StringRef> Redirects[] = {/*STDIN=*/None,
+                                           /*STDOUT=*/OutputPath,
+                                           /*STDERR=*/None};
   int RetCode = ExecuteAndWait(SwVersPath, argv, /*env=*/nullptr, Redirects);
   ASSERT_EQ(0, RetCode);