[turbofan] Implement %_NewObject using FastNewObjectStub.

[turbofan] Implement %_NewObject using FastNewObjectStub.

The inline allocation sequence in the optimizing compilers cannot deal
well with funky types like JSRegExp, which have some magic fields in
addition to the inobject properties. In Crankshaft we already use the
FastNewObjectStub for %_NewObject in general, so fix TurboFan to the same.
Hopefully one day we can kill %_NewObject completely.

R=jarin@chromium.org
BUG=chromium:609029
LOG=n

Committed: https://crrev.com/c3218375c1583ed6f8ed8bc57cc0bac7326e1ab4
Cr-Commit-Position: refs/heads/master@{#36006}

[Benedikt Meurer, 2016-05-04 07:09:55]

Hey Jaro,

Quickfix to make Clusterfuzz happy.
Please take a look.

Thanks,
Benedikt

[Jarin, 2016-05-04 07:13:39]

lgtm

[Benedikt Meurer, 2016-05-04 07:13:54]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-05-04 07:14:04]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1943403004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1943403004/1

[commit-bot: I haz the power, 2016-05-04 07:33:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-04 07:35:36]

Description was changed from

==========
[turbofan] Implement %_NewObject using FastNewObjectStub.

The inline allocation sequence in the optimizing compilers cannot deal
well with funky types like JSRegExp, which have some magic fields in
addition to the inobject properties. In Crankshaft we already use the
FastNewObjectStub for %_NewObject in general, so fix TurboFan to the same.
Hopefully one day we can kill %_NewObject completely.

R=jarin@chromium.org
BUG=chromium:609029
LOG=n
==========

to

==========
[turbofan] Implement %_NewObject using FastNewObjectStub.

The inline allocation sequence in the optimizing compilers cannot deal
well with funky types like JSRegExp, which have some magic fields in
addition to the inobject properties. In Crankshaft we already use the
FastNewObjectStub for %_NewObject in general, so fix TurboFan to the same.
Hopefully one day we can kill %_NewObject completely.

R=jarin@chromium.org
BUG=chromium:609029
LOG=n

Committed: https://crrev.com/c3218375c1583ed6f8ed8bc57cc0bac7326e1ab4
Cr-Commit-Position: refs/heads/master@{#36006}
==========

[commit-bot: I haz the power, 2016-05-04 07:35:36]

Patchset 1 (id:??) landed as
https://crrev.com/c3218375c1583ed6f8ed8bc57cc0bac7326e1ab4
Cr-Commit-Position: refs/heads/master@{#36006}

[Benedikt Meurer, 2016-05-04 11:16:57]

Hey Jaro,

Quick fix.
Please take a look.

Thanks,
Benedikt