[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, 2 insertions, 2 deletions

diff --git a/llvm/unittests/Support/ErrorTest.cpp b/llvm/unittests/Support/ErrorTest.cpp
index 57dda99..16118a9 100644
--- a/llvm/unittests/Support/ErrorTest.cpp
+++ b/llvm/unittests/Support/ErrorTest.cpp
@@ -1097,7 +1097,7 @@ TEST(Error, moveInto) {
 
     // Failure with no prior value.
     EXPECT_THAT_ERROR(makeFailure().moveInto(V), Failed());
-    EXPECT_EQ(None, V.Box);
+    EXPECT_EQ(std::nullopt, V.Box);
 
     // Success with no prior value.
     EXPECT_THAT_ERROR(make(5).moveInto(V), Succeeded());
@@ -1119,7 +1119,7 @@ TEST(Error, moveInto) {
     // Same cases as above.
     Optional<MoveOnlyBox> MaybeV;
     EXPECT_THAT_ERROR(makeFailure().moveInto(MaybeV), Failed());
-    EXPECT_EQ(None, MaybeV);
+    EXPECT_EQ(std::nullopt, MaybeV);
 
     EXPECT_THAT_ERROR(make(5).moveInto(MaybeV), Succeeded());
     EXPECT_EQ(MoveOnlyBox(5), MaybeV);