Fix Array.prototype.sort on proxies.

Fix Array.prototype.sort on proxies.

BUG=chromium:591699
LOG=n
R=rossberg

Committed: https://crrev.com/86c955fee0aa15c37a7af1bd7dcb0a8bf5a6d92c
Cr-Commit-Position: refs/heads/master@{#34498}

[neis, 2016-03-04 09:10:51]

Hold on, will add a test as well.

BTW, the spec for sort is crazy.

[neis, 2016-03-04 09:20:40]

Ok, ptal.

[rossberg, 2016-03-04 14:15:03]

lgtm

[neis, 2016-03-04 14:18:52]

The CQ bit was checked by neis@chromium.org

[commit-bot: I haz the power, 2016-03-04 14:19:03]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1764953002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1764953002/20001

[commit-bot: I haz the power, 2016-03-04 14:42:24]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-03-04 14:44:02]

Description was changed from

==========
Fix Array.prototype.sort on proxies.

BUG=chromium:591699
LOG=n
R=rossberg
==========

to

==========
Fix Array.prototype.sort on proxies.

BUG=chromium:591699
LOG=n
R=rossberg

Committed: https://crrev.com/86c955fee0aa15c37a7af1bd7dcb0a8bf5a6d92c
Cr-Commit-Position: refs/heads/master@{#34498}
==========

[commit-bot: I haz the power, 2016-03-04 14:44:03]

Patchset 2 (id:??) landed as
https://crrev.com/86c955fee0aa15c37a7af1bd7dcb0a8bf5a6d92c
Cr-Commit-Position: refs/heads/master@{#34498}