[turbofan] Move JSCallFunction specialization to JSCallReducer.

[turbofan] Move JSCallFunction specialization to JSCallReducer.

This is the first part to refactoring the JSNativeContextSpecialization
class, which has grown way too big recently.

Also don't collect cross context feedback for the CallIC in general.
Neither TurboFan nor Crankshaft can make any use of cross context
JSFunction feedback that is collected by the CallIC, so there's no
point in gathering that feedback at all (it just complicates the
checking that is necessary in the compilers). What we should do
instead at some point (when Crankshaft becomes less important) is
to collect the SharedFunctionInfo as feedback for those cases.

R=yangguo@chromium.org
BUG=v8:4470
LOG=n

Committed: https://crrev.com/e5edd66d070952ad4243acf14aa7cc161be7fe18
Cr-Commit-Position: refs/heads/master@{#32022}

[Benedikt Meurer, 2015-11-17 06:10:29]

Hey Yang,

Here's an easy one, moving functionality within TurboFan and limiting the scope
of CallIC feedback to the native context.
Please take a look.

Thanks,
Benedikt

[Yang, 2015-11-17 06:16:54]

On 2015/11/17 06:10:29, Benedikt Meurer wrote:
> Hey Yang,
> 
> Here's an easy one, moving functionality within TurboFan and limiting the
scope
> of CallIC feedback to the native context.
> Please take a look.
> 
> Thanks,
> Benedikt

lgtm aside from the arm64 failure.

[Benedikt Meurer, 2015-11-17 06:21:15]

The CQ bit was checked by bmeurer@chromium.org

[Benedikt Meurer, 2015-11-17 06:21:15]

The patchset sent to the CQ was uploaded after l-g-t-m from yangguo@chromium.org
Link to the patchset: https://codereview.chromium.org/1451273002/#ps20001
(title: "Fix arm64 failures.")

[commit-bot: I haz the power, 2015-11-17 06:21:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1451273002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1451273002/20001

[commit-bot: I haz the power, 2015-11-17 07:14:51]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-11-17 07:15:37]

Patchset 2 (id:??) landed as
https://crrev.com/e5edd66d070952ad4243acf14aa7cc161be7fe18
Cr-Commit-Position: refs/heads/master@{#32022}