alt/error_redef2_1alt1_alt8.nit:33,6--7: Redef error: B::f1 is an inherited property. To redefine it, add the redef keyword.
alt/error_redef2_1alt1_alt8.nit:33,8--20: Redef error: error_redef2_1alt1_alt8#B#f1 redefines error_redef2_1alt1_alt8#A#f1 with 1 parameter(s), 0 expected. Signature is error_redef2_1alt1_alt8#B#f1