[keys] adding fast-path for dict-mode objects with own keys only

[keys] adding fast-path for dict-mode objects with own keys only

BUG=

Committed: https://crrev.com/a549d4a7aaa2189cd86fd63ce84623774ff82d6d
Cr-Commit-Position: refs/heads/master@{#35138}

[Camillo Bruni, 2016-03-24 10:34:04]

The CQ bit was checked by cbruni@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-03-24 10:34:14]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1831783002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1831783002/20001

[Camillo Bruni, 2016-03-24 10:37:35]

cbruni@chromium.org changed reviewers:
+ verwaest@chromium.org

[Camillo Bruni, 2016-03-24 10:37:36]

PTAL

[commit-bot: I haz the power, 2016-03-24 11:02:34]

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

[commit-bot: I haz the power, 2016-03-24 11:02:34]

Dry run: This issue passed the CQ dry run.

[Toon Verwaest, 2016-03-30 06:51:17]

lgtm

https://codereview.chromium.org/1831783002/diff/20001/src/keys.cc
File src/keys.cc (right):

https://codereview.chromium.org/1831783002/diff/20001/src/keys.cc#newcode409
src/keys.cc:409: return !IsStringWrapperElementsKind(map->elements_kind()) &&
You can just check for LAST_CUSTOM_ELEMENTS_TYPE, that includes string wrapper
and hidden prototypes.

[Camillo Bruni, 2016-03-30 13:21:53]

The CQ bit was checked by cbruni@chromium.org

[Camillo Bruni, 2016-03-30 13:21:53]

The patchset sent to the CQ was uploaded after l-g-t-m from
verwaest@chromium.org
Link to the patchset: https://codereview.chromium.org/1831783002/#ps40001
(title: "simplifying simple property test")

[commit-bot: I haz the power, 2016-03-30 13:22:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1831783002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1831783002/40001

[commit-bot: I haz the power, 2016-03-30 13:24:02]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-03-30 13:25:39]

Description was changed from

==========
[keys] adding fast-path for dict-mode objects with own keys only

BUG=
==========

to

==========
[keys] adding fast-path for dict-mode objects with own keys only

BUG=

Committed: https://crrev.com/a549d4a7aaa2189cd86fd63ce84623774ff82d6d
Cr-Commit-Position: refs/heads/master@{#35138}
==========

[commit-bot: I haz the power, 2016-03-30 13:25:40]

Patchset 3 (id:??) landed as
https://crrev.com/a549d4a7aaa2189cd86fd63ce84623774ff82d6d
Cr-Commit-Position: refs/heads/master@{#35138}