[PATCH] D139241: [ADT, Support] Use std::nullopt instead of None (NFC)

[Kazu Hirata via Phabricator via llvm-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rGfef3a16aeab6: [ADT, Support] Use std::nullopt instead of None (NFC) (authored by kazu).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D139241/new/

https://reviews.llvm.org/D139241

Files:
  llvm/include/llvm/ADT/AddressRanges.h
  llvm/include/llvm/ADT/BreadthFirstIterator.h
  llvm/include/llvm/ADT/DepthFirstIterator.h
  llvm/include/llvm/ADT/Optional.h
  llvm/include/llvm/ADT/STLExtras.h
  llvm/include/llvm/ADT/StringMapEntry.h
  llvm/include/llvm/ADT/TinyPtrVector.h
  llvm/include/llvm/Support/Allocator.h
  llvm/include/llvm/Support/CheckedArithmetic.h
  llvm/include/llvm/Support/Error.h
  llvm/include/llvm/Support/FileUtilities.h
  llvm/include/llvm/Support/Format.h
  llvm/include/llvm/Support/FormatProviders.h
  llvm/include/llvm/Support/InstructionCost.h
  llvm/include/llvm/Support/JSON.h
  llvm/include/llvm/Support/MemoryBuffer.h
  llvm/include/llvm/Support/NativeFormatting.h
  llvm/include/llvm/Support/VersionTuple.h
  llvm/include/llvm/Support/VirtualFileSystem.h

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