[lldb] 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, 7 insertions, 7 deletions

diff --git a/lldb/source/Target/Process.cpp b/lldb/source/Target/Process.cpp
index 694e5dc93e67..f12a01df86b7 100644
--- a/lldb/source/Target/Process.cpp
+++ b/lldb/source/Target/Process.cpp
@@ -1372,8 +1372,8 @@ Status Process::ResumeSynchronous(Stream *stream) {
 
   Status error = PrivateResume();
   if (error.Success()) {
-    StateType state = WaitForProcessToStop(llvm::None, nullptr, true,
-                                           listener_sp, stream);
+    StateType state =
+        WaitForProcessToStop(std::nullopt, nullptr, true, listener_sp, stream);
     const bool must_be_alive =
         false; // eStateExited is ok, so this must be false
     if (!StateIsStoppedState(state, must_be_alive))
@@ -2636,7 +2636,7 @@ Status Process::LoadCore() {
     // Wait for a stopped event since we just posted one above...
     lldb::EventSP event_sp;
     StateType state =
-        WaitForProcessToStop(llvm::None, &event_sp, true, listener_sp);
+        WaitForProcessToStop(std::nullopt, &event_sp, true, listener_sp);
 
     if (!StateIsStoppedState(state, false)) {
       Log *log = GetLog(LLDBLog::Process);
@@ -3038,7 +3038,7 @@ Status Process::ConnectRemote(llvm::StringRef remote_url) {
   if (error.Success()) {
     if (GetID() != LLDB_INVALID_PROCESS_ID) {
       EventSP event_sp;
-      StateType state = WaitForProcessStopPrivate(event_sp, llvm::None);
+      StateType state = WaitForProcessStopPrivate(event_sp, std::nullopt);
 
       if (state == eStateStopped || state == eStateCrashed) {
         // If we attached and actually have a process on the other end, then
@@ -3785,7 +3785,7 @@ thread_result_t Process::RunPrivateStateThread(bool is_secondary_thread) {
   bool interrupt_requested = false;
   while (!exit_now) {
     EventSP event_sp;
-    GetEventsPrivate(event_sp, llvm::None, control_only);
+    GetEventsPrivate(event_sp, std::nullopt, control_only);
     if (event_sp->BroadcasterIs(&m_private_state_control_broadcaster)) {
       LLDB_LOGF(log,
                 "Process::%s (arg = %p, pid = %" PRIu64
@@ -4609,7 +4609,7 @@ GetExpressionTimeout(const EvaluateExpressionOptions &options,
     return GetOneThreadExpressionTimeout(options);
 
   if (!options.GetTimeout())
-    return llvm::None;
+    return std::nullopt;
   else
     return *options.GetTimeout() - GetOneThreadExpressionTimeout(options);
 }
@@ -4663,7 +4663,7 @@ HandleStoppedEvent(lldb::tid_t thread_id, const ThreadPlanSP &thread_plan_sp,
 
   if (!handle_interrupts &&
       Process::ProcessEventData::GetInterruptedFromEvent(event_sp.get()))
-    return llvm::None;
+    return std::nullopt;
 
   LLDB_LOG(log, "thread plan did not successfully complete");
   if (!options.DoesUnwindOnError())