[crankshaft] Properly deal with null prototype.

[crankshaft] Properly deal with null prototype.

Don't assume that the prototype of an object is always a JSObject when
inlining the known receiver map case for abstract relational comparison.

BUG=chromium:679202
R=ishell@chromium.org

Review-Url: https://codereview.chromium.org/2621583002
Cr-Commit-Position: refs/heads/master@{#42123}
Committed: https://chromium.googlesource.com/v8/v8/+/5f418c8a2d95620c8d328e1357e9373c74e685e6

[Benedikt Meurer, 2017-01-09 08:22:00]

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

[commit-bot: I haz the power, 2017-01-09 08:22:09]

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

[Igor Sheludko, 2017-01-09 08:26:11]

lgtm

[Benedikt Meurer, 2017-01-09 08:26:34]

The CQ bit was unchecked by bmeurer@chromium.org

[Benedikt Meurer, 2017-01-09 08:26:38]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2017-01-09 08:26:50]

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, 2017-01-09 08:47:43]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1483950398607850, "parent_rev":
"b36b8395e81fa2f7709c27acec93e8ce26d5bc3a", "commit_rev":
"5f418c8a2d95620c8d328e1357e9373c74e685e6"}

[commit-bot: I haz the power, 2017-01-09 08:47:50]

Description was changed from

==========
[crankshaft] Properly deal with null prototype.

Don't assume that the prototype of an object is always a JSObject when
inlining the known receiver map case for abstract relational comparison.

BUG=chromium:679202
R=ishell@chromium.org
==========

to

==========
[crankshaft] Properly deal with null prototype.

Don't assume that the prototype of an object is always a JSObject when
inlining the known receiver map case for abstract relational comparison.

BUG=chromium:679202
R=ishell@chromium.org

Review-Url: https://codereview.chromium.org/2621583002
Cr-Commit-Position: refs/heads/master@{#42123}
Committed:
https://chromium.googlesource.com/v8/v8/+/5f418c8a2d95620c8d328e1357e9373c74e...
==========

[commit-bot: I haz the power, 2017-01-09 08:47:51]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/v8/v8/+/5f418c8a2d95620c8d328e1357e9373c74e...