[turbofan] Remove type feedback from AstGraphBuilder pipeline.

[turbofan] Remove type feedback from AstGraphBuilder pipeline.

The AstGraphBuilder pipeline is only used for asm.js now, so the whole
type feedback mechanism is essentially dead code currently, thus we
better nuke it.

BUG=v8:5267, v8:5657
Committed: https://crrev.com/c17e8605691623bf2718bc9789162cb8b59de081
Cr-Commit-Position: refs/heads/master@{#41201}

[Benedikt Meurer, 2016-11-23 05:33:11]

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

[commit-bot: I haz the power, 2016-11-23 05:33:15]

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

[Benedikt Meurer, 2016-11-23 05:52:57]

bmeurer@chromium.org changed reviewers:
+ yangguo@chromium.org

[Benedikt Meurer, 2016-11-23 05:52:57]

Hey Yang,

Here's some after-branch cleanup for the fullcodegen pipeline, removing dead
code.
Please take a look.

Thanks,
Benedikt

[Yang, 2016-11-23 05:56:05]

On 2016/11/23 05:52:57, Benedikt Meurer wrote:
> Hey Yang,
> 
> Here's some after-branch cleanup for the fullcodegen pipeline, removing dead
> code.
> Please take a look.
> 
> Thanks,
> Benedikt

lgtm.

[commit-bot: I haz the power, 2016-11-23 06:04:56]

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

[commit-bot: I haz the power, 2016-11-23 06:04:57]

Dry run: This issue passed the CQ dry run.

[Benedikt Meurer, 2016-11-23 06:08:18]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2016-11-23 06:08:26]

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, 2016-11-23 06:10:03]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1479881298644600, "parent_rev":
"e99df9f912fe359622666880e8129b40273998e0", "commit_rev":
"ed1de2025395572b51382e20e1285c3ef038109f"}

[commit-bot: I haz the power, 2016-11-23 06:10:07]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-23 06:10:42]

Description was changed from

==========
[turbofan] Remove type feedback from AstGraphBuilder pipeline.

The AstGraphBuilder pipeline is only used for asm.js now, so the whole
type feedback mechanism is essentially dead code currently, thus we
better nuke it.

BUG=v8:5267,v8:5657
==========

to

==========
[turbofan] Remove type feedback from AstGraphBuilder pipeline.

The AstGraphBuilder pipeline is only used for asm.js now, so the whole
type feedback mechanism is essentially dead code currently, thus we
better nuke it.

BUG=v8:5267,v8:5657

Committed: https://crrev.com/c17e8605691623bf2718bc9789162cb8b59de081
Cr-Commit-Position: refs/heads/master@{#41201}
==========

[commit-bot: I haz the power, 2016-11-23 06:10:43]

Patchset 1 (id:??) landed as
https://crrev.com/c17e8605691623bf2718bc9789162cb8b59de081
Cr-Commit-Position: refs/heads/master@{#41201}