Split CompileCallConstant into logical parts for Frontend and Backend.

Split CompileCallConstant into logical parts for Frontend and Backend.

Initial step towards separating IC (map check(s)), handler frontend
(prototype-check) and handler backend (actual handler code).

- Still need to split the map-check (IC) from rest of the prototype
  chain check.
- Still need to turn different parts in own code objects and cache them
  in more optimal places.

Committed: https://code.google.com/p/v8/source/detail?r=13604

[Toon Verwaest, 2013-02-05 12:21:21]

PTAL

[Jakob Kummerow, 2013-02-06 10:57:24]

lgtm