PATCH to avoid bogus warning

[Jason Merrill]

>>>>> Mark Mitchell <mark@markmitchell.com> writes:

 > I thought about that, of course.  But, it seemed conceivable that this
 > information might be useful in other places as well and there are, for
 > now at least, plenty of bits.

I'm not sure where else it would be useful.

 > Your suggestion would entail passing the variable around a bit: we'd
 > actually create the variable in finish_struct and then pass it into
 > finish_struct_methods and finish_struct_1.

Seems like we could create it in finish_struct_1 and not use it in
finish_struct_methods, since there we're looking for non-private methods
already.

Jason