message: [unittests] Another speculative fix for changes introduced in rL313156
diff: @@ -98,7 +98,8 @@ void DWARFCallFrameInfoTest::TestBasic(DWARFCallFrameInfo::Type type,
  const char *args[] = {YAML2OBJ, yaml.c_str(), nullptr};
  llvm::StringRef obj_ref = obj;
  - const llvm::StringRef *redirects[] = {nullptr, &obj_ref, nullptr};
  + const llvm::Optional<llvm::StringRef> redirects[] = {llvm::None, obj_ref,
  + llvm::None};
  ASSERT_EQ(0, llvm::sys::ExecuteAndWait(YAML2OBJ, args, nullptr, redirects));
  uint64_t size;
  