MIPS: Second attempt at introducing a premonomorphic state in the call target caches.

Port: r19457 (9d8d5f3)

Original commit message:
This time we don't go through the premonomorphic state for
the Array call target caches to avoid losing information from
allocation sites that aren't only used once, but where the
resulting array is used heavily.

Patch from Kasper Lund <kasperl@chromium.org>.

BUG=
R=plind44@gmail.com

Review URL: https://codereview.chromium.org/170903002

Patch from Balazs Kilvady <kilvadyb@homejinni.com>.

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@19463 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
Merge remote-tracking branch 'upstream/bleeding_edge' into bleeding_edge