Hello,

Each of these three targets contain their own implementation of 
get_saved_register().  In true GDB style, all three implementations are 
identical and as best I can tell, also identical to the old 
generic_get_saved_register!

Since generic_unwind_get_saved_register() provides equivalent (but less 
buggy) functionality, this patch switches these three platforms to that 
mechanism.

Given that the old code relied on the broken find_saved_registers() (see 
post from KevinB) the test results should improve.

Anyone with an Alpha want to try it (I think we can suck/see the vax and 
ns32k ... :-)?

enjoy,
Andrew