[turbofan] Add support to lower Function.prototype.call.

[turbofan] Add support to lower Function.prototype.call.

Support lowering of Function.prototype.call in the JSBuiltinReducer,
which is actually straightforward because of the way we represent JS
calls in TurboFan.  Currently we cannot inline the actual target yet,
since inlining still runs before typed lowering, but that will be
possible as well soon(ish).

R=jarin@chromium.org

Committed: https://crrev.com/f5e6dcb62b8ca0478f2c718794023afef055eb99
Cr-Commit-Position: refs/heads/master@{#31938}

[Benedikt Meurer, 2015-11-11 06:47:51]

Hey Jaro,

Sometimes TurboFan is just awesome, and simple things are actually very simple
:-)
Please take a look.

Thanks,
Benedikt

[Jarin, 2015-11-11 06:53:39]

lgtm

[Benedikt Meurer, 2015-11-11 07:24:59]

The CQ bit was checked by bmeurer@chromium.org

[commit-bot: I haz the power, 2015-11-11 07:25:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1439533002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1439533002/1

[commit-bot: I haz the power, 2015-11-11 07:26:26]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-11-11 07:26:56]

Patchset 1 (id:??) landed as
https://crrev.com/f5e6dcb62b8ca0478f2c718794023afef055eb99
Cr-Commit-Position: refs/heads/master@{#31938}