[stubs] Migrate ToLengthStub to TurboFan.

[stubs] Migrate ToLengthStub to TurboFan.

We now have everything in place to fully implement ToLengthStub as
TurboFanCodeStub without any runtime fallback (modulo allocation failure
of course).

R=jarin@chromium.org

Committed: https://crrev.com/2c653a5deec28f80dcdd1038298bd884a809d4c2
Cr-Commit-Position: refs/heads/master@{#35137}

[Benedikt Meurer, 2016-03-30 12:26:15]

Hey Jaro,

Here's a simple refactoring of ToLengthStub.
Please take a look.

Thanks,
Benedikt

[Jarin, 2016-03-30 12:30:05]

lgtm

[Benedikt Meurer (Google), 2016-03-30 12:33:05]

The CQ bit was checked by bmeurer@google.com

[commit-bot: I haz the power, 2016-03-30 12:33:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1843933002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1843933002/20001

[commit-bot: I haz the power, 2016-03-30 12:49:12]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-03-30 12:51:15]

Description was changed from

==========
[stubs] Migrate ToLengthStub to TurboFan.

We now have everything in place to fully implement ToLengthStub as
TurboFanCodeStub without any runtime fallback (modulo allocation failure
of course).

R=jarin@chromium.org
==========

to

==========
[stubs] Migrate ToLengthStub to TurboFan.

We now have everything in place to fully implement ToLengthStub as
TurboFanCodeStub without any runtime fallback (modulo allocation failure
of course).

R=jarin@chromium.org

Committed: https://crrev.com/2c653a5deec28f80dcdd1038298bd884a809d4c2
Cr-Commit-Position: refs/heads/master@{#35137}
==========

[commit-bot: I haz the power, 2016-03-30 12:51:16]

Patchset 2 (id:??) landed as
https://crrev.com/2c653a5deec28f80dcdd1038298bd884a809d4c2
Cr-Commit-Position: refs/heads/master@{#35137}