* tests/data/test-bidiff: Rename this directory to
tests/data/test-abidiff.
* tests/test-bidiff.cc: Renamed this to tests/test-abidiff.cc.
* tools/biar.cc: Renamed to tools/abiar.cc
* tools/bidiff.cc: Renamed to tools/abidiff.cc
* tools/bidw.cc: Renamed to tools/abidw.cc
* tools/bilint.cc: Renamed to tools/abilint.cc
* tools/bisym.cc: Renamed to tools/abisym.cc
* tests/test-alt-dwarf-file.cc: Renamed references to bidw* to abidw*.
* tests/test-diff-filter.cc: Renamed references to bidiff to abidiff.
* tests/test-lookup-syms.cc: Renamed references to bisym to abisym.
* tools/Makefile.am: Adjust.
* tests/Makefile.am: Likewise.
Signed-off-by: Dodji Seketeli <dodji@redhat.com>