[builtins] Migrate Object.keys to C++.

[builtins] Migrate Object.keys to C++.

Everything necessary to implement Object.keys efficiently is already
available in C++ land for quite some time now, and only the thin
JavaScript wrapper was left, so get rid of that as well and move the
whole builtin to C++ instead.

R=yangguo@chromium.org

Committed: https://crrev.com/50e1e751c6d71e0cd46c85cd699b65a71b1f2fe9
Cr-Commit-Position: refs/heads/master@{#33167}

[Benedikt Meurer, 2016-01-07 18:47:47]

Hey Yang,

Some cleanup for Object.keys.
Please take a look.

Thanks,
Benedikt

[Yang, 2016-01-08 06:36:59]

On 2016/01/07 18:47:47, Benedikt Meurer wrote:
> Hey Yang,
> 
> Some cleanup for Object.keys.
> Please take a look.
> 
> Thanks,
> Benedikt

lgtm.

[Benedikt Meurer, 2016-01-08 06:37:08]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-01-08 06:37:11]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1567963002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1567963002/1

[commit-bot: I haz the power, 2016-01-08 06:40:24]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-08 06:41:27]

Description was changed from

==========
[builtins] Migrate Object.keys to C++.

Everything necessary to implement Object.keys efficiently is already
available in C++ land for quite some time now, and only the thin
JavaScript wrapper was left, so get rid of that as well and move the
whole builtin to C++ instead.

R=yangguo@chromium.org
==========

to

==========
[builtins] Migrate Object.keys to C++.

Everything necessary to implement Object.keys efficiently is already
available in C++ land for quite some time now, and only the thin
JavaScript wrapper was left, so get rid of that as well and move the
whole builtin to C++ instead.

R=yangguo@chromium.org

Committed: https://crrev.com/50e1e751c6d71e0cd46c85cd699b65a71b1f2fe9
Cr-Commit-Position: refs/heads/master@{#33167}
==========

[commit-bot: I haz the power, 2016-01-08 06:41:27]

Patchset 1 (id:??) landed as
https://crrev.com/50e1e751c6d71e0cd46c85cd699b65a71b1f2fe9
Cr-Commit-Position: refs/heads/master@{#33167}