[runtime] Pass in receiver as target to the LookupIterator if known to be JSReceiver

[runtime] Pass in receiver as target to the LookupIterator if known to be JSReceiver

This avoids a minor unnecessary inefficiency (GetRoot) in setting up the LookupIterator.

BUG=

Committed: https://crrev.com/d117207a94a3a2e262c3c0cec53c78c6c5d4fea3
Cr-Commit-Position: refs/heads/master@{#34560}

[Toon Verwaest, 2016-03-07 16:59:06]

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

[Toon Verwaest, 2016-03-07 16:59:06]

ptal

[Camillo Bruni, 2016-03-07 18:51:11]

lgtm

maybe extend the commit message to justify this optimization.

[Toon Verwaest, 2016-03-07 19:11:00]

Description was changed from

==========
[runtime] Pass in receiver as target to the LookupIterator if known to be
JSReceiver

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

to

==========
[runtime] Pass in receiver as target to the LookupIterator if known to be
JSReceiver

This avoids a minor unnecessary inefficiency (GetRoot) in setting up the
LookupIterator.

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

[Toon Verwaest, 2016-03-07 19:11:06]

The CQ bit was checked by verwaest@chromium.org

[commit-bot: I haz the power, 2016-03-07 19:11:24]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1767123002/140001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1767123002/140001

[commit-bot: I haz the power, 2016-03-07 19:48:49]

Description was changed from

==========
[runtime] Pass in receiver as target to the LookupIterator if known to be
JSReceiver

This avoids a minor unnecessary inefficiency (GetRoot) in setting up the
LookupIterator.

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

to

==========
[runtime] Pass in receiver as target to the LookupIterator if known to be
JSReceiver

This avoids a minor unnecessary inefficiency (GetRoot) in setting up the
LookupIterator.

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

[commit-bot: I haz the power, 2016-03-07 19:48:49]

Committed patchset #8 (id:140001)

[commit-bot: I haz the power, 2016-03-07 19:50:28]

Description was changed from

==========
[runtime] Pass in receiver as target to the LookupIterator if known to be
JSReceiver

This avoids a minor unnecessary inefficiency (GetRoot) in setting up the
LookupIterator.

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

to

==========
[runtime] Pass in receiver as target to the LookupIterator if known to be
JSReceiver

This avoids a minor unnecessary inefficiency (GetRoot) in setting up the
LookupIterator.

BUG=

Committed: https://crrev.com/d117207a94a3a2e262c3c0cec53c78c6c5d4fea3
Cr-Commit-Position: refs/heads/master@{#34560}
==========

[commit-bot: I haz the power, 2016-03-07 19:50:29]

Patchset 8 (id:??) landed as
https://crrev.com/d117207a94a3a2e262c3c0cec53c78c6c5d4fea3
Cr-Commit-Position: refs/heads/master@{#34560}