[all-commits] [llvm/llvm-project] 1613f8: NFC (build fix): Add header for llvm::errs().

[Mitch Phillips via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1613f8b8d7d5fc155e1a0ce2f88c4be6b115936e
      https://github.com/llvm/llvm-project/commit/1613f8b8d7d5fc155e1a0ce2f88c4be6b115936e
  Author: Mitch Phillips <31459023+hctim at users.noreply.github.com>
  Date:   2022-01-21 (Fri, 21 Jan 2022)

  Changed paths:
    M llvm/lib/Support/ThreadPool.cpp

  Log Message:
  -----------
  NFC (build fix): Add header for llvm::errs().

Looks like e9211e039377 unfortunately broke the sanitizer build bots,
because those bots compile the symbolizer with DLLVM_ENABLE_THREADS=Off.
Likely, before the patch, this header was transitively included.