alt/error_redef2_1alt3_alt5.nit:30,6--7: Redef error: B::f1 is an inherited property. To redefine it, add the redef keyword.
alt/error_redef2_1alt3_alt5.nit:30,8--15: Redef error: error_redef2_1alt3_alt5#B#f1 redefines error_redef2_1alt3_alt5#A#f1 with 1 parameter(s), 0 expected. Signature is error_redef2_1alt3_alt5#B#f1: Int