[clang-tools-extra] Use std::nullopt instead of None in comments (NFC)
authorKazu Hirata <kazu@google.com>
Thu, 8 Dec 2022 04:22:27 +0000 (20:22 -0800)
committerKazu Hirata <kazu@google.com>
Thu, 8 Dec 2022 04:22:27 +0000 (20:22 -0800)
commitaee591003c0c1d2eb7f3e038aade820dab20d849
tree0608c52ecf93d2df21e5c232d4fffd77113b304d
parent15ae99647c23e19ba7caf105b61a2b5a45dc1daa
[clang-tools-extra] Use std::nullopt instead of None in comments (NFC)

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
clang-tools-extra/clang-tidy/ClangTidyCheck.h
clang-tools-extra/clang-tidy/NoLintDirectiveHandler.cpp
clang-tools-extra/clang-tidy/abseil/DurationFactoryScaleCheck.cpp
clang-tools-extra/clang-tidy/abseil/DurationRewriter.cpp
clang-tools-extra/clang-tidy/abseil/DurationRewriter.h
clang-tools-extra/clang-tidy/readability/ConstReturnTypeCheck.cpp
clang-tools-extra/clang-tidy/utils/LexerUtils.h
clang-tools-extra/clang-tidy/utils/TransformerClangTidyCheck.h
clang-tools-extra/clangd/ClangdLSPServer.h
clang-tools-extra/clangd/Headers.h