[Interpreter] Implement ForInStep directly.

[Interpreter] Implement ForInStep directly.

The ForInStep bytecode is essentially a (guaranteed) Smi increment
operation. We can do not need to go to the runtime for this operation.

R=oth@chromium.org

Committed: https://crrev.com/40bf2d7eee90c47ca6c8e6cb6098cb11d9bf303b
Cr-Commit-Position: refs/heads/master@{#34289}

[Benedikt Meurer, 2016-02-25 12:18:39]

bmeurer@chromium.org changed reviewers:
+ rmcilroy@chromium.org
- oth@chromium.org

[Benedikt Meurer, 2016-02-25 12:18:40]

Hey Ross,

And yet another small one.
Please take a look.

Thanks,
Benedikt

[rmcilroy, 2016-02-25 12:24:46]

LGTM, thanks.

[Benedikt Meurer, 2016-02-25 12:38:25]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-02-25 12:38:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1738823002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1738823002/1

[commit-bot: I haz the power, 2016-02-25 12:49:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-02-25 12:49:44]

Description was changed from

==========
[Interpreter] Implement ForInStep directly.

The ForInStep bytecode is essentially a (guaranteed) Smi increment
operation. We can do not need to go to the runtime for this operation.

R=oth@chromium.org
==========

to

==========
[Interpreter] Implement ForInStep directly.

The ForInStep bytecode is essentially a (guaranteed) Smi increment
operation. We can do not need to go to the runtime for this operation.

R=oth@chromium.org

Committed: https://crrev.com/40bf2d7eee90c47ca6c8e6cb6098cb11d9bf303b
Cr-Commit-Position: refs/heads/master@{#34289}
==========

[commit-bot: I haz the power, 2016-02-25 12:49:45]

Patchset 1 (id:??) landed as
https://crrev.com/40bf2d7eee90c47ca6c8e6cb6098cb11d9bf303b
Cr-Commit-Position: refs/heads/master@{#34289}