-alt/base_upcast2_alt6.nit:26,10: Type error: class T not found in module base_upcast2_alt6.
+alt/base_upcast2_alt6.nit:26,10: Error: class `T` not found in module `base_upcast2_alt6`. Did you mean `base_upcast2_alt6::A`,`base_upcast2_alt6::B`,`base_upcast2_alt6::C` or `base_upcast2_alt6::X`?