PPC: Use register arguments for RestParamAccessStub

PPC: Use register arguments for RestParamAccessStub

Port 82ca2a414deb4221100562a0fb2af0f216c4c3ef

Original commit message:
    This is preferable because in TurboFan we need to call it, and can't pass
    untagged external pointers on the stack.

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

Committed: https://crrev.com/f5036a7641dcd4d83ba6587426ce11510b5cb265
Cr-Commit-Position: refs/heads/master@{#33092}

[MTBrandyberry, 2016-01-04 15:57:24]

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

[commit-bot: I haz the power, 2016-01-04 15:57:38]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1553143002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1553143002/1

[commit-bot: I haz the power, 2016-01-04 16:26:25]

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

[commit-bot: I haz the power, 2016-01-04 16:26:25]

Dry run: This issue passed the CQ dry run.

[JoranSiu, 2016-01-04 18:32:04]

On 2016/01/04 16:26:25, commit-bot: I haz the power wrote:
> Dry run: This issue passed the CQ dry run.

lgtm

[MTBrandyberry, 2016-01-04 18:38:13]

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

[commit-bot: I haz the power, 2016-01-04 18:38:22]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1553143002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1553143002/1

[commit-bot: I haz the power, 2016-01-04 18:39:48]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-04 18:40:38]

Description was changed from

==========
PPC: Use register arguments for RestParamAccessStub

Port 82ca2a414deb4221100562a0fb2af0f216c4c3ef

Original commit message:
    This is preferable because in TurboFan we need to call it, and can't pass
    untagged external pointers on the stack.

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

to

==========
PPC: Use register arguments for RestParamAccessStub

Port 82ca2a414deb4221100562a0fb2af0f216c4c3ef

Original commit message:
    This is preferable because in TurboFan we need to call it, and can't pass
    untagged external pointers on the stack.

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

Committed: https://crrev.com/f5036a7641dcd4d83ba6587426ce11510b5cb265
Cr-Commit-Position: refs/heads/master@{#33092}
==========

[commit-bot: I haz the power, 2016-01-04 18:40:39]

Patchset 1 (id:??) landed as
https://crrev.com/f5036a7641dcd4d83ba6587426ce11510b5cb265
Cr-Commit-Position: refs/heads/master@{#33092}