RFC: Annotate immediates in x86 disassembly

[Nick Clifton]

Hi Maciej, Hi Jan,
>>> For me the use of the global "exe" in test_objdump_M_annotate is a
>>> problem when running the testsuite with RUNTESTFLAGS=x86-64.exp:
>>> ERROR: can't read "exe": no such variable

>   You just need: 
> set exe [exeext]

Thanks Maciej.

I am happy with either solution.  Jan - can you confirm that one or
both work, and do you have a preference ?

Cheers
  Nick