[OBV] Fix compilation failure inn rs6000-aix-tdep.c

[Tom Tromey]

>>>>> "Joel" == Joel Brobecker <brobecker@adacore.com> writes:

>> cc1: warnings being treated as errors
>> /home/muller/auto-test-gdb/gdb/gdb/rs6000-aix-tdep.c: In function
>> 'rs6000_convert_from_func_ptr_addr':
>> /home/muller/auto-test-gdb/gdb/gdb/rs6000-aix-tdep.c:586: warning: 'pc' may
>> be used uninitialized in this function

Joel> Gaaah - I am 150% sure that I rebuilt this file before committing :-(.

This error is probably GCC version- and option-dependent.
So, don't worry about it.

Tom