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}
Committed: https://chromium.googlesource.com/v8/v8/+/c5ea51259c488572277eced46c4c0149ffe96b56

[Jarin, 2016-12-16 09:53:33]

The CQ bit was checked by jarin@chromium.org

[Jarin, 2016-12-16 09:53:34]

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

[commit-bot: I haz the power, 2016-12-16 09:53:44]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-16 10:20:47]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1481882013830550, "parent_rev":
"6709edd7f6347917300673733bda2447ef187c84", "commit_rev":
"c5ea51259c488572277eced46c4c0149ffe96b56"}

[commit-bot: I haz the power, 2016-12-16 10:20:50]

Description was changed from

==========
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.
==========

to

==========
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}
Committed:
https://chromium.googlesource.com/v8/v8/+/c5ea51259c488572277eced46c4c0149ffe...
==========

[commit-bot: I haz the power, 2016-12-16 10:20:51]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/c5ea51259c488572277eced46c4c0149ffe...