MIPS: Fix materialization of arguments objects with unknown values.

MIPS: Fix materialization of arguments objects with unknown values.

Port r13763 (6b32e7d6)

Original commit message:
This fixes the deoptimizer to materialize arguments objects of correct
length even in cases where the actual argument values are unknown and
were optimized away by Crankshaft. This can happen if only the length
property or the identity of an arguments object is used.

BUG=

Committed: https://code.google.com/p/v8/source/detail?r=13803

[Michael Starzinger, 2013-03-04 10:16:46]

LGTM. This CL is against the 3.16 branch, it should be landed on the
bleeding_edge branch though.

[palfia, 2013-03-04 13:44:30]

On 2013/03/04 10:16:46, Michael Starzinger wrote:
> LGTM. This CL is against the 3.16 branch, it should be landed on the
> bleeding_edge branch though.

Thanks for pointing this out! It seems, I failed to set the correct base url.
I'll land this (these) commits on the bleeding_edge.

[palfia, 2013-03-04 14:26:38]

Committed manually as r13803 (presubmit successful).