message: Log which `InlineForSpeed` was used in PGI
  Summary: As title.
diff: @@ -332,6 +332,7 @@ void PerfMethodInlinePass::run_pass(DexStoresVector& stores,
  ifs->get_num_accepted(), ifs->get_num_choices());
  mgr.set_metric("pgi_inline_choices", ifs->get_num_choices());
  mgr.set_metric("pgi_inline_choices_accepted", ifs->get_num_accepted());
  + mgr.set_metric("pgi_use_random_forest", m_config->forest ? 1 : 0);
  }
  static PerfMethodInlinePass s_pass;
  