[patch/rfc] Deprecate sym_private, obj_private, and sym_stab_info

[Andrew Cagney]

>> Can you or someone else please show an example of how to convert the
>> deprecated code to using the per-objfile data pointers, or point to a
>> message in the archives that includes such examples?  TIA, and sorry
>> if this information was already posted and I missed it.
> 
> 
> Check for calls to objfile_data.  mips-tdep.c, for instance, uses it. The basic pattern is the same as per-arch data.

PS: I'll add this as a comment.

Andrew