-- main.mcl --
class c1 {
	test "t1" {}
	$y = "hello"
	class c0 {
		test "t2" {}
		$x = "goodbye"
	}
}
include c1 as i1	# has $y
include i1.c0 as i0	# has $x ...and $y

test "${i0.x}" {}	# ok
test "${i1.y}" {}	# ok
panic($i0.x != "goodbye")
panic($i1.y != "hello")

# the really tricky case
# XXX: works atm, but not supported for now, error is:
# could not set scope: var `$i0.y` does not exist in this scope
# We currently re-export anything in the parent scope as available from our
# current child scope, which makes this variable visible. Unfortunately, it does
# not have the correct dependency (edge) present in the Ordering system, so it
# is flaky depending on luck of the toposort.
#test "${i0.y}" {}

-- OUTPUT --
Vertex: test[goodbye]
Vertex: test[hello]
Vertex: test[t1]
Vertex: test[t2]