The location/ranges fixes I did the other day uncovered an old braino in
dwarf::attr_value::what_space. I fixed that, and the dwarfcmp-self tests
pass again. The dwarfcmp-test (i.e. dwarf_output) cases are still crashing
but I'm not going to touch that in hopes I can just replace that mess soon
enough with the new code I've been working on.
Thanks,
Roland