-alt/base_gen_redef_alt2.nit:17,15: Error: Formal parameter type #0 `X` must be named `E' as in the original definition in module `base_gen2`.
+alt/base_gen_redef_alt2.nit:17,15: Error: formal parameter type #0 `X` must be named `E` as in the original definition in module `base_gen2`.