[turbofan] Use CheckMaps in JSGlobalObjectSpecialization.

[turbofan] Use CheckMaps in JSGlobalObjectSpecialization.

This is a simple cleanup to use the recently added CheckMaps operator
instead of the hand-crafted map check sequence.

R=epertoso@chromium.org

Committed: https://crrev.com/6bd7bd4bc6f2aab6454331ce6feff1ff889de12d
Cr-Commit-Position: refs/heads/master@{#38242}

[Benedikt Meurer, 2016-08-02 11:47:51]

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

[commit-bot: I haz the power, 2016-08-02 11:48:03]

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

[Benedikt Meurer, 2016-08-02 12:08:50]

The CQ bit was unchecked by bmeurer@chromium.org

[epertoso, 2016-08-02 12:09:01]

lgtm

[Benedikt Meurer, 2016-08-02 12:11:49]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-08-02 12:11:53]

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, 2016-08-02 12:13:25]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-08-02 12:15:00]

Description was changed from

==========
[turbofan] Use CheckMaps in JSGlobalObjectSpecialization.

This is a simple cleanup to use the recently added CheckMaps operator
instead of the hand-crafted map check sequence.

R=epertoso@chromium.org
==========

to

==========
[turbofan] Use CheckMaps in JSGlobalObjectSpecialization.

This is a simple cleanup to use the recently added CheckMaps operator
instead of the hand-crafted map check sequence.

R=epertoso@chromium.org

Committed: https://crrev.com/6bd7bd4bc6f2aab6454331ce6feff1ff889de12d
Cr-Commit-Position: refs/heads/master@{#38242}
==========

[commit-bot: I haz the power, 2016-08-02 12:15:01]

Patchset 1 (id:??) landed as
https://crrev.com/6bd7bd4bc6f2aab6454331ce6feff1ff889de12d
Cr-Commit-Position: refs/heads/master@{#38242}