Property definitions

functional $ Fun4 :: call
	fun call(a0: A0,a1: A1,a2: A2,a3: A3): RESULT is abstract
lib/functional/functional_types.nit:63,2--58

functional $ FunRef4 :: call
	redef fun call(a0,a1,a2,a3): RESULT is intern
lib/functional/functional_types.nit:223,2--46