[Isolates] Merge crankshaft (r5922 from bleeding_edge).

[Isolates] Merge crankshaft (r5922 from bleeding_edge).

Committed: http://code.google.com/p/v8/source/detail?r=6851

[Vitaly Repeshko, 2011-02-16 22:19:09]

Dmitry, Mads,

I don't expect you to look through every detail of this (even though it would be
nice), but there were a few interesting changes to the crankshaft infrastructure
(especially to the runtime profiler and to the deoptimizer) that require your
attention. We discussed most of them last week.

I'm still working on win32 and mac platform files and I'll update the patch
before landing.


Thanks,
Vitaly

[Mads Ager (chromium), 2011-02-17 14:45:02]

I had a look at the runtime profiler changes and those look good. Rubberstamp
LGTM for the rest.

[Dmitry Titov, 2011-02-17 15:50:49]

I've looked at random files. Nothing caught the eye.
Rubberstamp LGTM as well.