[PATCH] libdw: Report error in dwarf_getlocation_die for bogus opcode offset.

[Mark Wielaard]

On Thu, 2018-06-07 at 00:01 +0200, Mark Wielaard wrote:
> Found by afl fuzzer on varlocs test. varlocs sanity checks that the
> given offset in the opcode corresponds to the cuoffset of the returned
> DIE. In case the opcode offset was bogus this might fail because we
> might wrap around and return a random DIE instead of reporting an error.

Pushed to master.