alt/error_virtual_type2_alt1.nit:22,2--24,14: Error: circularity of virtual type definition: GT -> T <-> T.
alt/error_virtual_type2_alt1.nit:25,2--10: Error: circularity of virtual type definition: T <-> T.
alt/error_virtual_type2_alt1.nit:38,23: Redef Error: expected `Comparable` for return type; got `T`.
alt/error_virtual_type2_alt1.nit:40,17--27: Redef Error: expected `null` bound type; got `G[Discrete]`.
alt/error_virtual_type2_alt1.nit:42,23: Redef Error: expected `Comparable` for return type; got `T`.