[rfc][4/13] Eliminate read_register: read_register in deprecated_mips_set_processor_regs_hack

[Maciej W. Rozycki]

On Thu, 7 Jun 2007, Ulrich Weigand wrote:

> one more weird global register access in a tdep file:
> deprecated_mips_set_processor_regs_hack in mips-tdep.c.

 This register is read-only, so it does not matter which copy you read. 
;-)

> (Not sure if this is still required, or if it could be replaced by
> the new XML register mechanism ...)

 Well, if the latter provides similar means.  I have extensive changes 
pending for deprecated_mips_set_processor_regs_hack() and this access 
definitely has to stay.

  Maciej