Request for reviews (L): 6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)

[Vladimir Kozlov]

Christian Thalinger wrote:
>> Use short jmpb() :
>> 688       __ jmp(done);
> 
> Done.
> 

Christian, I should have been more clear. I wanted you to use short jumps
for all jumps in this code. Could you use jccb for next also?:
  684        __ jcc(Assembler::zero, zero_extend);

Thanks,
Vladimir