[all-commits] [llvm/llvm-project] b9b877: [llvm-pdbutil] Update #includes (NFC)

[kazutakahirata via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b9b877f91e2001efaf0684b8ce436967dcdf91ca
      https://github.com/llvm/llvm-project/commit/b9b877f91e2001efaf0684b8ce436967dcdf91ca
  Author: Kazu Hirata <kazu at google.com>
  Date:   2022-12-14 (Wed, 14 Dec 2022)

  Changed paths:
    M llvm/tools/llvm-pdbutil/StreamUtil.h

  Log Message:
  -----------
  [llvm-pdbutil] Update #includes (NFC)

The header file uses std::optional, but it's realying a transitive
inclusion of <optional>.  Meanwhile, it no longer uses llvm::Optional.