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

This patch replaces (llvm::|)Optional< with std::optional<.  I'll post
a separate patch to remove #include "llvm/ADT/Optional.h".

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, 4 insertions, 3 deletions

diff --git a/clang/lib/CodeGen/CodeGenAction.cpp b/clang/lib/CodeGen/CodeGenAction.cpp
index 083d6b6..2b21926 100644
--- a/clang/lib/CodeGen/CodeGenAction.cpp
+++ b/clang/lib/CodeGen/CodeGenAction.cpp
@@ -423,7 +423,8 @@ namespace clang {
                                 bool &BadDebugInfo, StringRef &Filename,
                                 unsigned &Line, unsigned &Column) const;
 
-    Optional<FullSourceLoc> getFunctionSourceLocation(const Function &F) const;
+    std::optional<FullSourceLoc>
+    getFunctionSourceLocation(const Function &F) const;
 
     void DiagnosticHandlerImpl(const llvm::DiagnosticInfo &DI);
     /// Specialized handler for InlineAsm diagnostic.
@@ -692,7 +693,7 @@ const FullSourceLoc BackendConsumer::getBestLocationFromDebugLoc(
   return Loc;
 }
 
-Optional<FullSourceLoc>
+std::optional<FullSourceLoc>
 BackendConsumer::getFunctionSourceLocation(const Function &F) const {
   auto Hash = llvm::hash_value(F.getName());
   for (const auto &Pair : ManglingFullSourceLocs) {
@@ -1183,7 +1184,7 @@ void CodeGenAction::ExecuteAction() {
 
   SourceManager &SM = CI.getSourceManager();
   FileID FID = SM.getMainFileID();
-  Optional<MemoryBufferRef> MainFile = SM.getBufferOrNone(FID);
+  std::optional<MemoryBufferRef> MainFile = SM.getBufferOrNone(FID);
   if (!MainFile)
     return;