[all-commits] [llvm/llvm-project] ab6e9a: [Chrono] Add missing include <ratio>.

[Florian Hahn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ab6e9a44ba8011d537cb71381c2a41a5e3354507
      https://github.com/llvm/llvm-project/commit/ab6e9a44ba8011d537cb71381c2a41a5e3354507
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2022-01-18 (Tue, 18 Jan 2022)

  Changed paths:
    M llvm/include/llvm/Support/Chrono.h

  Log Message:
  -----------
  [Chrono] Add missing include <ratio>.

The file uses std::ratio without including the correct header.
Previously ratio was indirectly provided through chrono in libc++ but
that's not the case any longer.

This should fix a build failure with modules enabled:
https://green.lab.llvm.org/green/job/clang-stage2-Rthinlto/5185/console