[PATCH] libdw: dwarf_get_units find split units from .dwo.

[Mark Wielaard]

On Wed, May 16, 2018 at 09:15:01PM +0200, Mark Wielaard wrote:
> For a skeleton DIE dwarf_get_units should provide the split DIE as subdie.
> This implements that by trying to find the (named) .dwo file and finding
> the matching CU in it. The .dwo file is search relative to the current
> DWARF or using the comp_dir of the skeleton DIE.
> 
> Also fixes a small issue with str_offsets_base_off which is tested in the
> new testcase (by getting the name of the split CU DIE).

Pushed to master.