[turbofan] Improve typed lowering rules for JSToBoolean.

[turbofan] Improve typed lowering rules for JSToBoolean.

Also lower JSToBoolean(x) where x is either some detectable receiver or
null, or any kind of receiver, null or undefined. Also fix a couple of
minor issues with the JSToBoolean lowering and tests.

R=yangguo@chromium.org
BUG=v8:5267
Committed: https://crrev.com/9da894edcbbcb24bf884df32338609771fdd87fa
Cr-Commit-Position: refs/heads/master@{#41241}

[Benedikt Meurer, 2016-11-24 05:26:21]

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

[commit-bot: I haz the power, 2016-11-24 05:26:27]

Dry run: 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, 2016-11-24 05:53:21]

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

[commit-bot: I haz the power, 2016-11-24 05:53:22]

Dry run: This issue passed the CQ dry run.

[Yang, 2016-11-24 06:32:24]

On 2016/11/24 05:26:20, Benedikt Meurer wrote:

lgtm.

[Benedikt Meurer, 2016-11-24 06:34:19]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-11-24 06:34:31]

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, 2016-11-24 06:36:46]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1479969259874490, "parent_rev":
"6bb5a0c9bf201ef7084e9c0ce83c605c288e1cec", "commit_rev":
"d15eac7328aecf5503bf991e4d7fcdd39a5fe717"}

[commit-bot: I haz the power, 2016-11-24 06:36:52]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-24 06:37:21]

Description was changed from

==========
[turbofan] Improve typed lowering rules for JSToBoolean.

Also lower JSToBoolean(x) where x is either some detectable receiver or
null, or any kind of receiver, null or undefined. Also fix a couple of
minor issues with the JSToBoolean lowering and tests.

R=yangguo@chromium.org
BUG=v8:5267
==========

to

==========
[turbofan] Improve typed lowering rules for JSToBoolean.

Also lower JSToBoolean(x) where x is either some detectable receiver or
null, or any kind of receiver, null or undefined. Also fix a couple of
minor issues with the JSToBoolean lowering and tests.

R=yangguo@chromium.org
BUG=v8:5267

Committed: https://crrev.com/9da894edcbbcb24bf884df32338609771fdd87fa
Cr-Commit-Position: refs/heads/master@{#41241}
==========

[commit-bot: I haz the power, 2016-11-24 06:37:23]

Patchset 1 (id:??) landed as
https://crrev.com/9da894edcbbcb24bf884df32338609771fdd87fa
Cr-Commit-Position: refs/heads/master@{#41241}