[all-commits] [llvm/llvm-project] 34bcad: Use std::nullopt_t instead of NoneType (NFC)

[kazutakahirata via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 34bcadc38c2240807cd079fd03b93fc96cf64c84
      https://github.com/llvm/llvm-project/commit/34bcadc38c2240807cd079fd03b93fc96cf64c84
  Author: Kazu Hirata <kazu at google.com>
  Date:   2022-11-23 (Wed, 23 Nov 2022)

  Changed paths:
    M bolt/lib/Profile/DataAggregator.cpp
    M bolt/lib/Profile/YAMLProfileWriter.cpp
    M clang-tools-extra/clang-tidy/utils/RenamerClangTidyCheck.cpp
    M clang-tools-extra/clangd/support/ThreadsafeFS.h
    M clang/include/clang/Analysis/Analyses/PostOrderCFGView.h
    M clang/include/clang/Basic/DirectoryEntry.h
    M clang/include/clang/Basic/FileEntry.h
    M clang/include/clang/Sema/Template.h
    M clang/lib/AST/ExprConstant.cpp
    M clang/lib/Tooling/Transformer/Parsing.cpp
    M lldb/include/lldb/Utility/Timeout.h
    M lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.cpp
    M lldb/source/Plugins/TypeSystem/Clang/TypeSystemClang.h
    M llvm/include/llvm/ADT/ArrayRef.h
    M llvm/include/llvm/ADT/Optional.h
    M llvm/include/llvm/ADT/StringMapEntry.h
    M llvm/include/llvm/ADT/StringSet.h
    M llvm/include/llvm/FuzzMutate/OpDescriptor.h
    M llvm/include/llvm/Support/SMLoc.h
    M llvm/lib/CodeGen/MIRParser/MILexer.cpp
    M llvm/lib/Support/Optional.cpp
    M mlir/include/mlir/IR/OpDefinition.h
    M mlir/include/mlir/IR/OperationSupport.h
    M mlir/include/mlir/Support/Timing.h
    M mlir/lib/Support/Timing.cpp

  Log Message:
  -----------
  Use std::nullopt_t instead of NoneType (NFC)

This patch replaces those occurrences of NoneType that would trigger
an error if the definition of NoneType were missing in None.h.

To keep this patch focused, I am deliberately not replacing None with
std::nullopt in this patch or updating comments.  They will be
addressed in subsequent patches.

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

Differential Revision: https://reviews.llvm.org/D138539