[committed] MIPS16/GAS: Fix delay slot filling across frags

[Matthew Fortune]

Maciej Rozycki <Maciej.Rozycki@imgtec.com> writes:
>  I have committed the change below then, with just a minor update to
> your proposed code change to have the declaration and statements
> separated from each other in the piece of code affected.  I decided your
> test case was insufficient though, as I think we want to make sure not
> only that code assembles successfully, but also that the same code is
> produced with and without a listing requested as well, and that both 16-
> bit and 32-bit
> MIPS16 jump instructions are handled correctly across frags.

Thanks Maciej. The extended test cases are definitely a good idea, this
area seems fragile but fewer special cases in the code will be better.

Matthew