[builtins] Fix String.prototype.indexOf with negative positions

[builtins] Fix String.prototype.indexOf with negative positions

BUG=chromium:674889
Review-Url: https://codereview.chromium.org/2593593002
Cr-Commit-Position: refs/heads/master@{#41858}
Committed: https://chromium.googlesource.com/v8/v8/+/c1402cbde3a08f6d165a301c6f5596ca895ee0e7

[Camillo Bruni, 2016-12-20 11:45:54]

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

[commit-bot: I haz the power, 2016-12-20 11:46:05]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Camillo Bruni, 2016-12-20 11:46:41]

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

[Camillo Bruni, 2016-12-20 11:46:41]

PTAL

[commit-bot: I haz the power, 2016-12-20 12:12:43]

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

[commit-bot: I haz the power, 2016-12-20 12:12:44]

Dry run: This issue passed the CQ dry run.

[petermarshall, 2016-12-20 12:28:25]

lgtm

[Camillo Bruni, 2016-12-20 12:39:12]

The CQ bit was checked by cbruni@chromium.org

[commit-bot: I haz the power, 2016-12-20 12:39:21]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-12-20 12:40:58]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1482237552828510, "parent_rev":
"fd4812323f8c90662be1d0961fbeaabe52565478", "commit_rev":
"c1402cbde3a08f6d165a301c6f5596ca895ee0e7"}

[commit-bot: I haz the power, 2016-12-20 12:41:01]

Description was changed from

==========
[builtins] Fix String.prototype.indexOf with negative positions

BUG=chromium:674889
==========

to

==========
[builtins] Fix String.prototype.indexOf with negative positions

BUG=chromium:674889

Review-Url: https://codereview.chromium.org/2593593002
Cr-Commit-Position: refs/heads/master@{#41858}
Committed:
https://chromium.googlesource.com/v8/v8/+/c1402cbde3a08f6d165a301c6f5596ca895...
==========

[commit-bot: I haz the power, 2016-12-20 12:41:02]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/c1402cbde3a08f6d165a301c6f5596ca895...