Generate a ... node

Property definitions

nitc $ InheritanceGraph :: dotdotdot
	# Generate a `...` node
	fun dotdotdot(id: String): DotNode do
		var node = new DotNode(id)
		node["label"] = "..."
		node["shape"] = "none"
		return node
	end
src/doc/commands/commands_graph.nit:351,2--357,4