[turbofan] Remove eager frame state from add and subtract.

[turbofan] Remove eager frame state from add and subtract.

This removes the frame state input representing the before-state from
nodes having the {JSAdd} or the {JSSubtract} operator. Lowering that
inserts number conversions of the inputs has to be disabled when
deoptimization is enabled, because the frame state layout is no longer
known.

R=jarin@chromium.org
BUG=v8:5021
Committed: https://crrev.com/2620c4264af8988782267830a54b2601637ed97e
Cr-Commit-Position: refs/heads/master@{#37522}

[Jarin, 2016-07-05 09:46:54]

lgtm

[Michael Starzinger, 2016-07-05 10:42:17]

The CQ bit was checked by mstarzinger@chromium.org

[commit-bot: I haz the power, 2016-07-05 10:42:25]

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, 2016-07-05 10:45:22]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-07-05 10:46:40]

Description was changed from

==========
[turbofan] Remove eager frame state from add and subtract.

This removes the frame state input representing the before-state from
nodes having the {JSAdd} or the {JSSubtract} operator. Lowering that
inserts number conversions of the inputs has to be disabled when
deoptimization is enabled, because the frame state layout is no longer
known.

R=jarin@chromium.org
BUG=v8:5021
==========

to

==========
[turbofan] Remove eager frame state from add and subtract.

This removes the frame state input representing the before-state from
nodes having the {JSAdd} or the {JSSubtract} operator. Lowering that
inserts number conversions of the inputs has to be disabled when
deoptimization is enabled, because the frame state layout is no longer
known.

R=jarin@chromium.org
BUG=v8:5021

Committed: https://crrev.com/2620c4264af8988782267830a54b2601637ed97e
Cr-Commit-Position: refs/heads/master@{#37522}
==========

[commit-bot: I haz the power, 2016-07-05 10:46:40]

Patchset 1 (id:??) landed as
https://crrev.com/2620c4264af8988782267830a54b2601637ed97e
Cr-Commit-Position: refs/heads/master@{#37522}