review of context_pmc3 branch

[Allison Randal]

Vasily Chekalkin wrote:
> 
> Ok. I'm done with scope of current branch. Only one thing to do _before_ 
> merge is fixing JIT failure (breaking point can be easily spotted by 
> make codetest).

If you wait until after the 1.6 release (the call for no more branch 
merges has already gone out anyway), the old jit will be disabled and 
you can ignore that failure.

> 1. Introduce Parrot_pcc_get_current_foo functions which will get current 
> Context from Interp instead of passing it explicitly.
> 
> 2. Reshuffle code in terms of revising src/call/context.c, 
> src/pmc/context.pmc and src/gc/alloc_registers.c

Sounds good.

Allison