[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

3 files changed, 7 insertions, 7 deletions

diff --git a/lldb/source/API/SBCommandInterpreter.cpp b/lldb/source/API/SBCommandInterpreter.cpp
index 5a48dc8..cd6ef3b 100644
--- a/lldb/source/API/SBCommandInterpreter.cpp
+++ b/lldb/source/API/SBCommandInterpreter.cpp
@@ -47,7 +47,7 @@ public:
     m_auto_repeat_command =
         auto_repeat_command == nullptr
             ? std::nullopt
-            : llvm::Optional<std::string>(auto_repeat_command);
+            : std::optional<std::string>(auto_repeat_command);
     // We don't know whether any given command coming from this interface takes
     // arguments or not so here we're just disabling the basic args check.
     CommandArgumentData none_arg{eArgTypeNone, eArgRepeatStar};
@@ -60,8 +60,8 @@ public:
   /// but in short, if std::nullopt is returned, the previous command will be
   /// repeated, and if an empty string is returned, no commands will be
   /// executed.
-  llvm::Optional<std::string> GetRepeatCommand(Args &current_command_args,
-                                               uint32_t index) override {
+  std::optional<std::string> GetRepeatCommand(Args &current_command_args,
+                                              uint32_t index) override {
     if (!m_auto_repeat_command)
       return std::nullopt;
     else
@@ -78,7 +78,7 @@ protected:
     return ret;
   }
   std::shared_ptr<lldb::SBCommandPluginInterface> m_backend;
-  llvm::Optional<std::string> m_auto_repeat_command;
+  std::optional<std::string> m_auto_repeat_command;
 };
 
 SBCommandInterpreter::SBCommandInterpreter(CommandInterpreter *interpreter)
diff --git a/lldb/source/API/SBMemoryRegionInfo.cpp b/lldb/source/API/SBMemoryRegionInfo.cpp
index bf2db7b..cd25be5 100644
--- a/lldb/source/API/SBMemoryRegionInfo.cpp
+++ b/lldb/source/API/SBMemoryRegionInfo.cpp
@@ -134,7 +134,7 @@ uint32_t SBMemoryRegionInfo::GetNumDirtyPages() {
   LLDB_INSTRUMENT_VA(this);
 
   uint32_t num_dirty_pages = 0;
-  const llvm::Optional<std::vector<addr_t>> &dirty_page_list =
+  const std::optional<std::vector<addr_t>> &dirty_page_list =
       m_opaque_up->GetDirtyPageList();
   if (dirty_page_list)
     num_dirty_pages = dirty_page_list->size();
@@ -146,7 +146,7 @@ addr_t SBMemoryRegionInfo::GetDirtyPageAddressAtIndex(uint32_t idx) {
   LLDB_INSTRUMENT_VA(this, idx);
 
   addr_t dirty_page_addr = LLDB_INVALID_ADDRESS;
-  const llvm::Optional<std::vector<addr_t>> &dirty_page_list =
+  const std::optional<std::vector<addr_t>> &dirty_page_list =
       m_opaque_up->GetDirtyPageList();
   if (dirty_page_list && idx < dirty_page_list->size())
     dirty_page_addr = (*dirty_page_list)[idx];
diff --git a/lldb/source/API/SBType.cpp b/lldb/source/API/SBType.cpp
index 9870099..1ccc3b0 100644
--- a/lldb/source/API/SBType.cpp
+++ b/lldb/source/API/SBType.cpp
@@ -121,7 +121,7 @@ uint64_t SBType::GetByteSize() {
   LLDB_INSTRUMENT_VA(this);
 
   if (IsValid())
-    if (llvm::Optional<uint64_t> size =
+    if (std::optional<uint64_t> size =
             m_opaque_sp->GetCompilerType(false).GetByteSize(nullptr))
       return *size;
   return 0;