message: Update variable in PassTiming to refer to system_clock instead of high_resolution_clock.
diff: @@ -138,7 +138,7 @@ struct Timer {
  }
  /// Raw timing information.
  - std::chrono::time_point<std::chrono::high_resolution_clock> startTime;
  + std::chrono::time_point<std::chrono::system_clock> startTime;
  std::chrono::nanoseconds wallTime = std::chrono::nanoseconds(0);
  std::chrono::nanoseconds userTime = std::chrono::nanoseconds(0);
  