[turbofan] Support for typed lowering of "prototype" load from functions.

[turbofan] Support for typed lowering of "prototype" load from functions.

Add initial support to optimize certain "prototype" loads from known
JSFunctions which have a prototype. This includes an appropriate typing
rule plus a matching rule for typed lowering.

R=jarin@chromium.org

Committed: https://crrev.com/f7226a798adc465fa6fcc80fae91fd2cbb80843f
Cr-Commit-Position: refs/heads/master@{#32390}

[Benedikt Meurer, 2015-11-30 08:11:38]

Hey Jaro,

Here's a first version for "prototype" lowering.
Please take a look.

Thanks,
Benedikt

[Jarin, 2015-11-30 08:35:28]

lgtm

[Benedikt Meurer, 2015-11-30 08:35:37]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2015-11-30 08:35:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1482213002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1482213002/1

[commit-bot: I haz the power, 2015-11-30 08:42:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-30 08:42:17]

Description was changed from

==========
[turbofan] Support for typed lowering of "prototype" load from functions.

Add initial support to optimize certain "prototype" loads from known
JSFunctions which have a prototype. This includes an appropriate typing
rule plus a matching rule for typed lowering.

R=jarin@chromium.org
==========

to

==========
[turbofan] Support for typed lowering of "prototype" load from functions.

Add initial support to optimize certain "prototype" loads from known
JSFunctions which have a prototype. This includes an appropriate typing
rule plus a matching rule for typed lowering.

R=jarin@chromium.org

Committed: https://crrev.com/f7226a798adc465fa6fcc80fae91fd2cbb80843f
Cr-Commit-Position: refs/heads/master@{#32390}
==========

[commit-bot: I haz the power, 2015-11-30 08:42:20]

Patchset 1 (id:??) landed as
https://crrev.com/f7226a798adc465fa6fcc80fae91fd2cbb80843f
Cr-Commit-Position: refs/heads/master@{#32390}