It is always possible to satisfy this constraint now that project URLs
may be specified explicitly.
(This restriction will be necessary to make manifest imports work
sensibly -- we should have done this before...).
Signed-off-by: Marti Bolivar <marti.bolivar@nordicsemi.no>
There's no good reason to have these tests in subdirectories. Flatten
them out. Keep the directory of invalid manifests separate to keep the
directory listing clean, though.
Signed-off-by: Marti Bolivar <marti.bolivar@nordicsemi.no>