[crankshaft] Eliminate unnecessary ToNumber call

[crankshaft] Eliminate unnecessary ToNumber call

This is a fix for a regression that started ~6 months ago when
https://codereview.chromium.org/1757013002 landed. This patch will remove the
unnecessary Change/CallWithDescriptor/Change opcodes causing the regression.

BUG=v8:5373
R=bmeurer@chromium.org

Committed: https://crrev.com/f87d19c42e12d44b7f836def6b54320b5e8ff999
Cr-Commit-Position: refs/heads/master@{#40345}

[Benedikt Meurer, 2016-10-17 08:39:34]

lgtm

[smvv, 2016-10-17 08:41:17]

The CQ bit was checked by sander@leaningtech.com

[commit-bot: I haz the power, 2016-10-17 08:41:21]

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, 2016-10-17 08:52:30]

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

[commit-bot: I haz the power, 2016-10-17 08:52:31]

Try jobs failed on following builders:
  v8_presubmit on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/26591)

[smvv, 2016-10-17 08:59:13]

On 2016/10/17 at 08:52:31, commit-bot wrote:
> Try jobs failed on following builders:
>   v8_presubmit on master.tryserver.v8 (JOB_FAILED,
http://build.chromium.org/p/tryserver.v8/builders/v8_presubmit/builds/26591)

I've now added my info to v8's AUTHORS. I thought that was done automatically
when signing the CLA.

[smvv, 2016-10-17 08:59:31]

The CQ bit was checked by sander@leaningtech.com

[smvv, 2016-10-17 08:59:31]

The patchset sent to the CQ was uploaded after l-g-t-m from bmeurer@chromium.org
Link to the patchset: https://codereview.chromium.org/2423923002/#ps20001
(title: "[crankshaft] Eliminate unnecessary ToNumber call")

[commit-bot: I haz the power, 2016-10-17 08:59:43]

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, 2016-10-17 09:27:26]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-10-17 09:27:47]

Description was changed from

==========
[crankshaft] Eliminate unnecessary ToNumber call

This is a fix for a regression that started ~6 months ago when
https://codereview.chromium.org/1757013002 landed. This patch will remove the
unnecessary Change/CallWithDescriptor/Change opcodes causing the regression.

BUG=v8:5373
R=bmeurer@chromium.org
==========

to

==========
[crankshaft] Eliminate unnecessary ToNumber call

This is a fix for a regression that started ~6 months ago when
https://codereview.chromium.org/1757013002 landed. This patch will remove the
unnecessary Change/CallWithDescriptor/Change opcodes causing the regression.

BUG=v8:5373
R=bmeurer@chromium.org

Committed: https://crrev.com/f87d19c42e12d44b7f836def6b54320b5e8ff999
Cr-Commit-Position: refs/heads/master@{#40345}
==========

[commit-bot: I haz the power, 2016-10-17 09:27:48]

Patchset 2 (id:??) landed as
https://crrev.com/f87d19c42e12d44b7f836def6b54320b5e8ff999
Cr-Commit-Position: refs/heads/master@{#40345}