alt/base_virtual_type_self_alt1.nit:44,9: Type Error: expected `Int`, got `Float`.
alt/base_virtual_type_self_alt1.nit:45,7--12: Type Error: expected `Float`, got `Int`.
alt/base_virtual_type_self_alt1.nit:47,7--12: Type Error: expected `Float`, got `A[Int]`.