port d80fd48e (r32163)

  original commit message:
  The CallICStub has call-site specific knowledge about the receiver,
  which we did not utilize; plus the CallICStub does in some case know
  whether it is about to [[Call]] a function or potentially some other
  callable. In the common case we actually know that the target is a
  function and so we can use the CallFunction builtin directly instead
  of redispatching in the Call builtin.

BUG=

Review URL: https://codereview.chromium.org/1467123002

Cr-Commit-Position: refs/heads/master@{#32167}