PPC: [date] Migrate Date field accessors to native builtins.

PPC: [date] Migrate Date field accessors to native builtins.

Port fc5c7e0486038f8a615041963a13c9b7bb602469

Original commit message:
    There's no reason to have JavaScript wrappers for those accessors,
    since the meat is already in hand-written native code (via %_DateField).
    First step now to put them into native builtins. Next step will be to
    completely remove %_DateField.

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

Committed: https://crrev.com/c52767e178fa32f54557059b191fb2bc782b815b
Cr-Commit-Position: refs/heads/master@{#33187}

[MTBrandyberry, 2016-01-08 15:08:30]

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

[commit-bot: I haz the power, 2016-01-08 15:08:36]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1569173003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1569173003/1

[commit-bot: I haz the power, 2016-01-08 15:35:59]

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

[commit-bot: I haz the power, 2016-01-08 15:35:59]

Dry run: This issue passed the CQ dry run.

[JoranSiu, 2016-01-08 16:49:17]

On 2016/01/08 15:35:59, commit-bot: I haz the power wrote:
> Dry run: This issue passed the CQ dry run.

lgtm

[MTBrandyberry, 2016-01-08 16:50:08]

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

[commit-bot: I haz the power, 2016-01-08 16:50:14]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1569173003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1569173003/1

[commit-bot: I haz the power, 2016-01-08 16:51:37]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-08 16:52:13]

Description was changed from

==========
PPC: [date] Migrate Date field accessors to native builtins.

Port fc5c7e0486038f8a615041963a13c9b7bb602469

Original commit message:
    There's no reason to have JavaScript wrappers for those accessors,
    since the meat is already in hand-written native code (via %_DateField).
    First step now to put them into native builtins. Next step will be to
    completely remove %_DateField.

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

to

==========
PPC: [date] Migrate Date field accessors to native builtins.

Port fc5c7e0486038f8a615041963a13c9b7bb602469

Original commit message:
    There's no reason to have JavaScript wrappers for those accessors,
    since the meat is already in hand-written native code (via %_DateField).
    First step now to put them into native builtins. Next step will be to
    completely remove %_DateField.

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

Committed: https://crrev.com/c52767e178fa32f54557059b191fb2bc782b815b
Cr-Commit-Position: refs/heads/master@{#33187}
==========

[commit-bot: I haz the power, 2016-01-08 16:52:14]

Patchset 1 (id:??) landed as
https://crrev.com/c52767e178fa32f54557059b191fb2bc782b815b
Cr-Commit-Position: refs/heads/master@{#33187}