[turbofan] Add binary operation hints for javascript operators.

[turbofan] Add binary operation hints for javascript operators.

This is the initial support for binary operation hints on javascript
binary operators, i.e. JSAdd, JSSubtract and so on. The hints are
extracted from the fullcodegen code object before graph building and the
AstGraphBuilder puts those hints on the operators if available.

R=jarin@chromium.org
BUG=v8:4583
LOG=n

Committed: https://crrev.com/5af6017d4b5fccc7d26946ff6fca03057b78eab8
Cr-Commit-Position: refs/heads/master@{#32443}

[Jarin, 2015-12-01 07:31:00]

Awesome. LGTM.

https://codereview.chromium.org/1487973002/diff/1/src/compiler/js-typed-lower...
File src/compiler/js-typed-lowering.cc (right):

https://codereview.chromium.org/1487973002/diff/1/src/compiler/js-typed-lower...
src/compiler/js-typed-lowering.cc:221: // TODO(turbofan): Strong mode should be
killed soonish!
???

[Benedikt Meurer, 2015-12-01 08:53:19]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2015-12-01 08:53:35]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1487973002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1487973002/1

[commit-bot: I haz the power, 2015-12-01 09:03:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-12-01 09:03:35]

Description was changed from

==========
[turbofan] Add binary operation hints for javascript operators.

This is the initial support for binary operation hints on javascript
binary operators, i.e. JSAdd, JSSubtract and so on. The hints are
extracted from the fullcodegen code object before graph building and the
AstGraphBuilder puts those hints on the operators if available.

R=jarin@chromium.org
BUG=v8:4583
LOG=n
==========

to

==========
[turbofan] Add binary operation hints for javascript operators.

This is the initial support for binary operation hints on javascript
binary operators, i.e. JSAdd, JSSubtract and so on. The hints are
extracted from the fullcodegen code object before graph building and the
AstGraphBuilder puts those hints on the operators if available.

R=jarin@chromium.org
BUG=v8:4583
LOG=n

Committed: https://crrev.com/5af6017d4b5fccc7d26946ff6fca03057b78eab8
Cr-Commit-Position: refs/heads/master@{#32443}
==========

[commit-bot: I haz the power, 2015-12-01 09:03:36]

Patchset 1 (id:??) landed as
https://crrev.com/5af6017d4b5fccc7d26946ff6fca03057b78eab8
Cr-Commit-Position: refs/heads/master@{#32443}