Type of the others nodes in the graph

Property definitions

a_star $ Node :: N
	# Type of the others nodes in the `graph`
	type N: Node
lib/a_star/a_star.nit:64,2--65,13

a_star $ NamedNode :: N
	redef type N: NamedNode
lib/a_star/tests/test_a_star.nit:237,2--24

a_star $ PositionedNamedNode :: N
	redef type N: PositionedNamedNode
lib/a_star/tests/test_a_star.nit:248,2--34