"test_signatures" ignores wold build breakage for the sake of
reporting differences also when a world build is broken. Therefore we
need a dedicated test that a world build at least theoretically can
proceed without obvious parse time problems (dependencies, parse
errors, dangling .bbappends, etc.).
This is similar to the BSP test_machine_world. The difference is
that test_world doesn't change the MACHINE.
Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
