[turbofan] Assign proper types to various builtins.

[turbofan] Assign proper types to various builtins.

Let the Typer assign proper types to Map, Set, WeakMap and WeakSet
builtins. Also assign a proper type to Array.isArray, Object.assign
and Object.create.

R=yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2640783006
Cr-Commit-Position: refs/heads/master@{#42535}
Committed: https://chromium.googlesource.com/v8/v8/+/f23819ef6da470b26dae828b15f57291ffda3850

[Benedikt Meurer, 2017-01-20 07:59:37]

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

[commit-bot: I haz the power, 2017-01-20 07:59:45]

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

[Yang, 2017-01-20 08:23:34]

On 2017/01/20 07:59:36, Benedikt Meurer wrote:

lgtm.

[Benedikt Meurer, 2017-01-20 08:26:57]

The CQ bit was unchecked by bmeurer@chromium.org

[Benedikt Meurer, 2017-01-20 08:27:00]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2017-01-20 08:27:11]

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, 2017-01-20 08:56:34]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1484900820200490, "parent_rev":
"9c68654c397b8783469b99d668dd54ed3f61ebfc", "commit_rev":
"f23819ef6da470b26dae828b15f57291ffda3850"}

[commit-bot: I haz the power, 2017-01-20 08:56:38]

Description was changed from

==========
[turbofan] Assign proper types to various builtins.

Let the Typer assign proper types to Map, Set, WeakMap and WeakSet
builtins. Also assign a proper type to Array.isArray, Object.assign
and Object.create.

R=yangguo@chromium.org
==========

to

==========
[turbofan] Assign proper types to various builtins.

Let the Typer assign proper types to Map, Set, WeakMap and WeakSet
builtins. Also assign a proper type to Array.isArray, Object.assign
and Object.create.

R=yangguo@chromium.org

Review-Url: https://codereview.chromium.org/2640783006
Cr-Commit-Position: refs/heads/master@{#42535}
Committed:
https://chromium.googlesource.com/v8/v8/+/f23819ef6da470b26dae828b15f57291ffd...
==========

[commit-bot: I haz the power, 2017-01-20 08:56:39]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/f23819ef6da470b26dae828b15f57291ffd...