Revert of [turbofan] Remove value numbering from late optimization pass....

Revert of [turbofan] Remove value numbering from late optimization pass. (patchset #1 id:1 of https://codereview.chromium.org/2570813002/ )

Reason for revert:
Tanks Kraken astar benchmark.

Original issue's description:
> [turbofan] Remove value numbering from late optimization pass.
>
> Committed: https://crrev.com/e32535af5a5f4776a58ef434ea77d56528ded427
> Cr-Commit-Position: refs/heads/master@{#41672}

TBR=bmeurer@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.

Review-Url: https://codereview.chromium.org/2579273002
Cr-Commit-Position: refs/heads/master@{#41748}

src/compiler/pipeline.cc

@@ -1140,6 +1140,7 @@ struct LateOptimizationPhase {
                                                    data->jsgraph(), temp_zone);
     DeadCodeElimination dead_code_elimination(&graph_reducer, data->graph(),
                                               data->common());
+    ValueNumberingReducer value_numbering(temp_zone, data->graph()->zone());
     MachineOperatorReducer machine_reducer(data->jsgraph());
     CommonOperatorReducer common_reducer(&graph_reducer, data->graph(),
                                          data->common(), data->machine());
@@ -1148,6 +1149,7 @@ struct LateOptimizationPhase {
     TailCallOptimization tco(data->common(), data->graph());
     AddReducer(data, &graph_reducer, &branch_condition_elimination);
     AddReducer(data, &graph_reducer, &dead_code_elimination);
+    AddReducer(data, &graph_reducer, &value_numbering);
     AddReducer(data, &graph_reducer, &machine_reducer);
     AddReducer(data, &graph_reducer, &common_reducer);
     AddReducer(data, &graph_reducer, &select_lowering);