-alt/base_prot_sig_alt2.nit:30,24: Error: The protected property `proB` cannot contain the private type `B`
+alt/base_prot_sig_alt2.nit:34,24: Error: the protected property `proB` cannot contain the private type `B`.
+alt/base_prot_sig_alt2.nit:38,23: Error: the protected property `proB2` cannot contain the private type `B`.