fix sjlj eh vs dwarf2 debug

[Jason Merrill]

>>>>> "Richard" == Richard Henderson <rth@redhat.com> writes:

> On Tue, Aug 14, 2001 at 12:16:28PM -0700, Richard Henderson wrote:
>> * dwarf2out.c (dwarf2out_frame_finish): Never emit .eh_frame
>> if USING_SJLJ_EXCEPTIONS.

> Actually, I take that back.  Now that we are (or may be) encoding
> .eh_frame data in non-standard ways, we should probably not try to
> emit only one of .eh_frame or .debug_frame.  That way the debugger
> doesn't have to care about whatever funnies we do with augmentation.

> Jason, what are your thoughts?

That makes sense to me.  What do gdb folks think?

Jason