alt/error_defs_alt4.nit:29,5--7: Redef error: A::baz is an inherited property. To redefine it, add the redef keyword.
alt/error_defs_alt4.nit:29,8--16: Redef error: error_defs_alt4#A#baz redefines error_defs_alt4#Object#baz with 1 parameter(s), 0 expected. Signature is error_defs_alt4#A#baz: Int