[all-commits] [llvm/llvm-project] 81e149: Replace None with std::nullopt in comments (NFC)

[kazutakahirata via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 81e149aab9b3676b16728e883e2f21ee938cff93
      https://github.com/llvm/llvm-project/commit/81e149aab9b3676b16728e883e2f21ee938cff93
  Author: Kazu Hirata <kazu at google.com>
  Date:   2023-05-12 (Fri, 12 May 2023)

  Changed paths:
    M clang-tools-extra/pseudo/include/clang-pseudo/DirectiveTree.h
    M llvm/include/llvm/DebugInfo/DWARF/DWARFLocationExpression.h
    M llvm/include/llvm/ExecutionEngine/RuntimeDyldChecker.h
    M llvm/include/llvm/Transforms/IPO/Attributor.h
    M polly/include/polly/Support/ScopHelper.h

  Log Message:
  -----------
  Replace None with std::nullopt 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