Revert of [heap] Unify evacuating an object for new and old generation.

Revert of [heap] Unify evacuating an object for new and old generation. (patchset #2 id:20001 of https://codereview.chromium.org/1481873002/ )

Reason for revert:
Still investigating bad canary.

Original issue's description:
> [heap] Unify evacuating an object for new and old generation.
>
> BUG=chromium:524425
> LOG=N
>
> Committed: https://crrev.com/afb8bcce8ba889280ed747eb218d287ddd233b4a
> Cr-Commit-Position: refs/heads/master@{#32365}

TBR=mlippautz@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:524425
Committed: https://crrev.com/9c60ddc60e96da0c59e646660789c26550ad52a2
Cr-Commit-Position: refs/heads/master@{#32460}

[Hannes Payer (out of office), 2015-12-01 13:28:08]

Created Revert of [heap] Unify evacuating an object for new and old generation.

[commit-bot: I haz the power, 2015-12-01 13:28:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1483963004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1483963004/1

[commit-bot: I haz the power, 2015-12-01 13:28:26]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-01 13:29:02]

Description was changed from

==========
Revert of [heap] Unify evacuating an object for new and old generation.
(patchset #2 id:20001 of https://codereview.chromium.org/1481873002/ )

Reason for revert:
Still investigating bad canary.

Original issue's description:
> [heap] Unify evacuating an object for new and old generation.
> 
> BUG=chromium:524425
> LOG=N
> 
> Committed: https://crrev.com/afb8bcce8ba889280ed747eb218d287ddd233b4a
> Cr-Commit-Position: refs/heads/master@{#32365}

TBR=mlippautz@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:524425
==========

to

==========
Revert of [heap] Unify evacuating an object for new and old generation.
(patchset #2 id:20001 of https://codereview.chromium.org/1481873002/ )

Reason for revert:
Still investigating bad canary.

Original issue's description:
> [heap] Unify evacuating an object for new and old generation.
>
> BUG=chromium:524425
> LOG=N
>
> Committed: https://crrev.com/afb8bcce8ba889280ed747eb218d287ddd233b4a
> Cr-Commit-Position: refs/heads/master@{#32365}

TBR=mlippautz@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:524425

Committed: https://crrev.com/9c60ddc60e96da0c59e646660789c26550ad52a2
Cr-Commit-Position: refs/heads/master@{#32460}
==========

[commit-bot: I haz the power, 2015-12-01 13:29:03]

Patchset 1 (id:??) landed as
https://crrev.com/9c60ddc60e96da0c59e646660789c26550ad52a2
Cr-Commit-Position: refs/heads/master@{#32460}

[Hannes Payer (out of office), 2015-12-02 11:03:58]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1494533002/ by hpayer@chromium.org.

The reason for reverting is: Reland after fixing the potential root cause of the
canary crasher..