[lldb/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/lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp b/lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp
index 51ff7e4..2a5718a 100644
--- a/lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp
+++ b/lldb/unittests/ScriptInterpreter/Python/PythonTestSuite.cpp
@@ -232,7 +232,7 @@ bool lldb_private::LLDBSWIGPythonRunScriptKeywordProcess(
 llvm::Optional<std::string> lldb_private::LLDBSWIGPythonRunScriptKeywordThread(
     const char *python_function_name, const char *session_dictionary_name,
     lldb::ThreadSP thread) {
-  return llvm::None;
+  return std::nullopt;
 }
 
 bool lldb_private::LLDBSWIGPythonRunScriptKeywordTarget(
@@ -244,7 +244,7 @@ bool lldb_private::LLDBSWIGPythonRunScriptKeywordTarget(
 llvm::Optional<std::string> lldb_private::LLDBSWIGPythonRunScriptKeywordFrame(
     const char *python_function_name, const char *session_dictionary_name,
     lldb::StackFrameSP frame) {
-  return llvm::None;
+  return std::nullopt;
 }
 
 bool lldb_private::LLDBSWIGPythonRunScriptKeywordValue(