PPC: Introduce a code stub version of Array.prototype.push

PPC: Introduce a code stub version of Array.prototype.push

Port 1134688cedecfdc35808d48fbdfeda49450cb618

Original commit message:
    This roughly doubles performance for generic Array.prototype.push.

R=verwaest@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Committed: https://crrev.com/f0d88f9084729a7b0600b35b117fc1e48307e8d3
Cr-Commit-Position: refs/heads/master@{#34999}

[MTBrandyberry, 2016-03-22 15:28:27]

PTAL

[MTBrandyberry, 2016-03-22 15:28:37]

The CQ bit was checked by mbrandy@us.ibm.com to run a CQ dry run

[commit-bot: I haz the power, 2016-03-22 15:28:45]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1823103002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1823103002/1

[commit-bot: I haz the power, 2016-03-22 16:14:03]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-03-22 16:14:04]

Dry run: This issue passed the CQ dry run.

[JoranSiu, 2016-03-22 16:53:11]

On 2016/03/22 16:14:04, commit-bot: I haz the power wrote:
> Dry run: This issue passed the CQ dry run.

lgtm

[MTBrandyberry, 2016-03-22 16:55:34]

The CQ bit was checked by mbrandy@us.ibm.com

[commit-bot: I haz the power, 2016-03-22 16:55:37]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1823103002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1823103002/1

[commit-bot: I haz the power, 2016-03-22 16:57:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-22 16:57:35]

Description was changed from

==========
PPC: Introduce a code stub version of Array.prototype.push

Port 1134688cedecfdc35808d48fbdfeda49450cb618

Original commit message:
    This roughly doubles performance for generic Array.prototype.push.

R=verwaest@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com
BUG=
==========

to

==========
PPC: Introduce a code stub version of Array.prototype.push

Port 1134688cedecfdc35808d48fbdfeda49450cb618

Original commit message:
    This roughly doubles performance for generic Array.prototype.push.

R=verwaest@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com
BUG=

Committed: https://crrev.com/f0d88f9084729a7b0600b35b117fc1e48307e8d3
Cr-Commit-Position: refs/heads/master@{#34999}
==========

[commit-bot: I haz the power, 2016-03-22 16:57:35]

Patchset 1 (id:??) landed as
https://crrev.com/f0d88f9084729a7b0600b35b117fc1e48307e8d3
Cr-Commit-Position: refs/heads/master@{#34999}