Revert of [heap] Remove border page

Revert of [heap] Remove border page

Reason for revert:
No real improvement as we still lack the ability to promote from
scavenges/young gen GCs.

Let's keep this in mind for later.

Original issue's description:
> [heap] Remove border page
>
> A page now belongs either the nursery *or* the intermediate gen. The page that
> contained objects of both spaces is removed in this change.
>
> BUG=chromium:636331
>
> Committed: https://crrev.com/42ece47446f0dbd3779d6e0e00dce97a1931a9f9
> Cr-Commit-Position: refs/heads/master@{#39778}

TBR=ulan@chromium.org,hpayer@chromium.org
BUG=chromium:636331
Committed: https://crrev.com/9af3142fbadfe99e53c378dbe6e363e17aed89af
Cr-Commit-Position: refs/heads/master@{#39854}

[Michael Lippautz, 2016-09-29 08:37:16]

The CQ bit was checked by mlippautz@chromium.org

[commit-bot: I haz the power, 2016-09-29 08:37:25]

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, 2016-09-29 09:20:54]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-29 09:21:13]

Description was changed from

==========
Revert of [heap] Remove border page

Reason for revert:
No real improvement as we still lack the ability to promote from
scavenges/young gen GCs.

Let's keep this in mind for later.

Original issue's description:
> [heap] Remove border page
>
> A page now belongs either the nursery *or* the intermediate gen. The page that
> contained objects of both spaces is removed in this change.
>
> BUG=chromium:636331
>
> Committed: https://crrev.com/42ece47446f0dbd3779d6e0e00dce97a1931a9f9
> Cr-Commit-Position: refs/heads/master@{#39778}

TBR=ulan@chromium.org,hpayer@chromium.org
BUG=chromium:636331
==========

to

==========
Revert of [heap] Remove border page

Reason for revert:
No real improvement as we still lack the ability to promote from
scavenges/young gen GCs.

Let's keep this in mind for later.

Original issue's description:
> [heap] Remove border page
>
> A page now belongs either the nursery *or* the intermediate gen. The page that
> contained objects of both spaces is removed in this change.
>
> BUG=chromium:636331
>
> Committed: https://crrev.com/42ece47446f0dbd3779d6e0e00dce97a1931a9f9
> Cr-Commit-Position: refs/heads/master@{#39778}

TBR=ulan@chromium.org,hpayer@chromium.org
BUG=chromium:636331

Committed: https://crrev.com/9af3142fbadfe99e53c378dbe6e363e17aed89af
Cr-Commit-Position: refs/heads/master@{#39854}
==========

[commit-bot: I haz the power, 2016-09-29 09:21:14]

Patchset 1 (id:??) landed as
https://crrev.com/9af3142fbadfe99e53c378dbe6e363e17aed89af
Cr-Commit-Position: refs/heads/master@{#39854}