-alt/error_needed_method_alt2.nit:47,10--27: Error: Method 'init' doesn't exists in Collection[Int].
-alt/error_needed_method_alt2.nit:47,1--40: Type Error: 'for' expects a type providing 'iterator' method, got 'Collection[Int]'.
+alt/error_needed_method_alt2.nit:47,10--28: Type Error: cannot instantiate interface `Collection[Int]`.