Let's make this behave more like all the rest of the meson stuff.
This also is the first step to making it a bit more flexible so we
can define integration tests in different ways as will be seen in
the next commits.
Specifying the test number manually is tedious and prone to errors (as
recently proven). Since we have all the necessary data to work out the
test number, let's do it automagically.
Cover the case where a service is recovered out of reloading state via
a restart Restart= configuration.
Signed-off-by: Peter Morrow <pemorrow@linux.microsoft.com>
