[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, 2 insertions, 2 deletions

diff --git a/lldb/source/Commands/CommandObjectExpression.cpp b/lldb/source/Commands/CommandObjectExpression.cpp
index be306f2..b01e39f 100644
--- a/lldb/source/Commands/CommandObjectExpression.cpp
+++ b/lldb/source/Commands/CommandObjectExpression.cpp
@@ -374,7 +374,7 @@ CommandObjectExpression::GetEvalOptions(const Target &target) {
   if (m_command_options.timeout > 0)
     options.SetTimeout(std::chrono::microseconds(m_command_options.timeout));
   else
-    options.SetTimeout(llvm::None);
+    options.SetTimeout(std::nullopt);
   return options;
 }
 
@@ -540,7 +540,7 @@ GetExprOptions(ExecutionContext &ctx,
   if (command_options.timeout > 0)
     expr_options.SetTimeout(std::chrono::microseconds(command_options.timeout));
   else
-    expr_options.SetTimeout(llvm::None);
+    expr_options.SetTimeout(std::nullopt);
 
   return expr_options;
 }