Revert of [turbofan] Finally get rid of the generic algorithm.

Revert of [turbofan] Finally get rid of the generic algorithm. (patchset #2 id:20001 of https://codereview.chromium.org/944803002/)

Reason for revert:
Breaks dbg builds.

Original issue's description:
> [turbofan] Finally get rid of the generic algorithm.
>
> R=svenpanne@chromium.org
>
> Committed: https://crrev.com/5bbe693e4817011b6a496c638c9f09026fd3dac9
> Cr-Commit-Position: refs/heads/master@{#26760}

TBR=svenpanne@chromium.org,bmeurer@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/c7810004bb462bdf864f89774132f0fc25b4d9fa
Cr-Commit-Position: refs/heads/master@{#26763}

[Michael Achenbach, 2015-02-20 09:14:03]

Created Revert of [turbofan] Finally get rid of the generic algorithm.

[commit-bot: I haz the power, 2015-02-20 09:14:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/941963003/1

[commit-bot: I haz the power, 2015-02-20 09:14:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-20 09:14:54]

Patchset 1 (id:??) landed as
https://crrev.com/c7810004bb462bdf864f89774132f0fc25b4d9fa
Cr-Commit-Position: refs/heads/master@{#26763}