PPC: Write barrier for storing a code entry, and usage in CompileLazy builtin.

PPC: Write barrier for storing a code entry, and usage in CompileLazy builtin.

Port 477e133698aa2f0a40643f316c31d17347be2de7

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

Committed: https://crrev.com/ca255fd5e6ff305f9aeb5b3611db7ec08748cdcb
Cr-Commit-Position: refs/heads/master@{#33755}

[MTBrandyberry, 2016-02-04 21:12:31]

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

[commit-bot: I haz the power, 2016-02-04 21:12:36]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1668233003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1668233003/1

[commit-bot: I haz the power, 2016-02-04 21:30:02]

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

[commit-bot: I haz the power, 2016-02-04 21:30:02]

Dry run: This issue passed the CQ dry run.

[michael_dawson, 2016-02-04 21:56:51]

On 2016/02/04 21:30:02, commit-bot: I haz the power wrote:
> Dry run: This issue passed the CQ dry run.

lgtm

[MTBrandyberry, 2016-02-04 22:07:54]

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

[commit-bot: I haz the power, 2016-02-04 22:08:03]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1668233003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1668233003/1

[commit-bot: I haz the power, 2016-02-04 22:12:05]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-04 22:12:34]

Description was changed from

==========
PPC: Write barrier for storing a code entry, and usage in CompileLazy builtin.

Port 477e133698aa2f0a40643f316c31d17347be2de7

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

to

==========
PPC: Write barrier for storing a code entry, and usage in CompileLazy builtin.

Port 477e133698aa2f0a40643f316c31d17347be2de7

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

Committed: https://crrev.com/ca255fd5e6ff305f9aeb5b3611db7ec08748cdcb
Cr-Commit-Position: refs/heads/master@{#33755}
==========

[commit-bot: I haz the power, 2016-02-04 22:12:35]

Patchset 1 (id:??) landed as
https://crrev.com/ca255fd5e6ff305f9aeb5b3611db7ec08748cdcb
Cr-Commit-Position: refs/heads/master@{#33755}