[lldb] Use std::optional instead of llvm::Optional (NFC)

This patch replaces (llvm::|)Optional< with std::optional<.  I'll post
a separate patch to clean up the "using" declarations, #include
"llvm/ADT/Optional.h", etc.

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, 1 insertions, 1 deletions

diff --git a/lldb/source/Expression/IRExecutionUnit.cpp b/lldb/source/Expression/IRExecutionUnit.cpp
index f374476d8337..c8068eca5c1b 100644
--- a/lldb/source/Expression/IRExecutionUnit.cpp
+++ b/lldb/source/Expression/IRExecutionUnit.cpp
@@ -703,7 +703,7 @@ public:
   LoadAddressResolver(Target *target, bool &symbol_was_missing_weak)
       : m_target(target), m_symbol_was_missing_weak(symbol_was_missing_weak) {}
 
-  llvm::Optional<lldb::addr_t> Resolve(SymbolContextList &sc_list) {
+  std::optional<lldb::addr_t> Resolve(SymbolContextList &sc_list) {
     if (sc_list.IsEmpty())
       return std::nullopt;