[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, 2 insertions, 2 deletions

diff --git a/clang/unittests/Tooling/SourceCodeBuildersTest.cpp b/clang/unittests/Tooling/SourceCodeBuildersTest.cpp
index 6db3031..95aa29e 100644
--- a/clang/unittests/Tooling/SourceCodeBuildersTest.cpp
+++ b/clang/unittests/Tooling/SourceCodeBuildersTest.cpp
@@ -66,8 +66,8 @@ struct TestMatch {
 // matcher correspondingly. `Matcher` should match one of the statements in
 // `StatementCode` exactly -- that is, produce exactly one match. However,
 // `StatementCode` may contain other statements not described by `Matcher`.
-static llvm::Optional<TestMatch> matchStmt(StringRef StatementCode,
-                                           StatementMatcher Matcher) {
+static std::optional<TestMatch> matchStmt(StringRef StatementCode,
+                                          StatementMatcher Matcher) {
   auto AstUnit = buildASTFromCodeWithArgs(wrapSnippet(StatementCode),
                                           {"-Wno-unused-value"});
   if (AstUnit == nullptr) {