[llvm/unittests] Use std::nullopt instead of None (NFC)

This patch mechanically replaces None with std::nullopt where the
compiler would warn if None were deprecated.  The intent is to reduce
the amount of manual work required in migrating from Optional to
std::optional.

This is part of an effort to migrate from llvm::Optional to
std::optional:

https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716

1 files changed, 5 insertions, 5 deletions

diff --git a/llvm/unittests/Support/ProgramTest.cpp b/llvm/unittests/Support/ProgramTest.cpp
index 54ad9be..2134b96 100644
--- a/llvm/unittests/Support/ProgramTest.cpp
+++ b/llvm/unittests/Support/ProgramTest.cpp
@@ -195,7 +195,7 @@ TEST_F(ProgramEnvTest, CreateProcessTrailingSlash) {
 #else
   StringRef nul("/dev/null");
 #endif
-  std::optional<StringRef> redirects[] = {nul, nul, None};
+  std::optional<StringRef> redirects[] = {nul, nul, std::nullopt};
   int rc = ExecuteAndWait(my_exe, argv, getEnviron(), redirects,
                           /*secondsToWait=*/ 10, /*memoryLimit=*/ 0, &error,
                           &ExecutionFailed);
@@ -289,8 +289,8 @@ TEST(ProgramTest, TestExecuteNegative) {
   {
     std::string Error;
     bool ExecutionFailed;
-    int RetCode = ExecuteAndWait(Executable, argv, llvm::None, {}, 0, 0, &Error,
-                                 &ExecutionFailed);
+    int RetCode = ExecuteAndWait(Executable, argv, std::nullopt, {}, 0, 0,
+                                 &Error, &ExecutionFailed);
     ASSERT_LT(RetCode, 0) << "On error ExecuteAndWait should return 0 or "
                              "positive value indicating the result code";
     ASSERT_TRUE(ExecutionFailed);
@@ -300,8 +300,8 @@ TEST(ProgramTest, TestExecuteNegative) {
   {
     std::string Error;
     bool ExecutionFailed;
-    ProcessInfo PI = ExecuteNoWait(Executable, argv, llvm::None, {}, 0, &Error,
-                                   &ExecutionFailed);
+    ProcessInfo PI = ExecuteNoWait(Executable, argv, std::nullopt, {}, 0,
+                                   &Error, &ExecutionFailed);
     ASSERT_EQ(PI.Pid, ProcessInfo::InvalidPid)
         << "On error ExecuteNoWait should return an invalid ProcessInfo";
     ASSERT_TRUE(ExecutionFailed);