[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

2 files changed, 2 insertions, 2 deletions

diff --git a/lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.cpp b/lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.cpp
index ee45f246edd1..6b78ce5de697 100644
--- a/lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.cpp
+++ b/lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.cpp
@@ -132,7 +132,7 @@ determineClangStyle(const ClangHighlighter &highlighter,
 
 void ClangHighlighter::Highlight(const HighlightStyle &options,
                                  llvm::StringRef line,
-                                 llvm::Optional<size_t> cursor_pos,
+                                 std::optional<size_t> cursor_pos,
                                  llvm::StringRef previous_lines,
                                  Stream &result) const {
   using namespace clang;
diff --git a/lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.h b/lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.h
index 99e7b6ade568..20bb09502d42 100644
--- a/lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.h
+++ b/lldb/source/Plugins/Language/ClangCommon/ClangHighlighter.h
@@ -25,7 +25,7 @@ public:
   llvm::StringRef GetName() const override { return "clang"; }
 
   void Highlight(const HighlightStyle &options, llvm::StringRef line,
-                 llvm::Optional<size_t> cursor_pos,
+                 std::optional<size_t> cursor_pos,
                  llvm::StringRef previous_lines, Stream &s) const override;
 
   /// Returns true if the given string represents a keywords in any Clang