[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/Transforms/Utils/CloningTest.cpp b/llvm/unittests/Transforms/Utils/CloningTest.cpp
index 9b4a6fb..d5cd285 100644
--- a/llvm/unittests/Transforms/Utils/CloningTest.cpp
+++ b/llvm/unittests/Transforms/Utils/CloningTest.cpp
@@ -473,7 +473,7 @@ protected:
 
     // Function DI
     auto *File = DBuilder.createFile("filename.c", "/file/dir/");
-    DITypeRefArray ParamTypes = DBuilder.getOrCreateTypeArray(None);
+    DITypeRefArray ParamTypes = DBuilder.getOrCreateTypeArray(std::nullopt);
     DISubroutineType *FuncType =
         DBuilder.createSubroutineType(ParamTypes);
     auto *CU = DBuilder.createCompileUnit(dwarf::DW_LANG_C99,
@@ -962,7 +962,7 @@ protected:
 
     // Create debug info
     auto *File = DBuilder.createFile("filename.c", "/file/dir/");
-    DITypeRefArray ParamTypes = DBuilder.getOrCreateTypeArray(None);
+    DITypeRefArray ParamTypes = DBuilder.getOrCreateTypeArray(std::nullopt);
     DISubroutineType *DFuncType = DBuilder.createSubroutineType(ParamTypes);
     auto *CU = DBuilder.createCompileUnit(dwarf::DW_LANG_C99,
                                           DBuilder.createFile("filename.c",