PPC: [regexp] implement case-insensitive unicode regexps.

PPC: [regexp] implement case-insensitive unicode regexps.

Port a2baaaac93efbdd3f2e19e66907a39a7197b8305

R=yangguo@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=v8:2952
LOG=N

Committed: https://crrev.com/73aea9c13ffaa27d6ede1e552195dab92c141704
Cr-Commit-Position: refs/heads/master@{#33565}

[MTBrandyberry, 2016-01-27 19:15:50]

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

[commit-bot: I haz the power, 2016-01-27 19:15:51]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1643683002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1643683002/1

[commit-bot: I haz the power, 2016-01-27 19:50:19]

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

[commit-bot: I haz the power, 2016-01-27 19:50:20]

Dry run: This issue passed the CQ dry run.

[john.yan, 2016-01-27 21:00:15]

lgtm

[MTBrandyberry, 2016-01-27 21:03:50]

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

[commit-bot: I haz the power, 2016-01-27 21:03:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1643683002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1643683002/1

[commit-bot: I haz the power, 2016-01-27 21:05:58]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-27 21:06:27]

Description was changed from

==========
PPC: [regexp] implement case-insensitive unicode regexps.

Port a2baaaac93efbdd3f2e19e66907a39a7197b8305

R=yangguo@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com
BUG=v8:2952
LOG=N
==========

to

==========
PPC: [regexp] implement case-insensitive unicode regexps.

Port a2baaaac93efbdd3f2e19e66907a39a7197b8305

R=yangguo@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com,
michael_dawson@ca.ibm.com
BUG=v8:2952
LOG=N

Committed: https://crrev.com/73aea9c13ffaa27d6ede1e552195dab92c141704
Cr-Commit-Position: refs/heads/master@{#33565}
==========

[commit-bot: I haz the power, 2016-01-27 21:06:28]

Patchset 1 (id:??) landed as
https://crrev.com/73aea9c13ffaa27d6ede1e552195dab92c141704
Cr-Commit-Position: refs/heads/master@{#33565}