alt/base_as_notnull_alt1.nit:41,6: Warning: 'as(not null)' on non nullable type.
alt/base_as_notnull_alt1.nit:42,6--7: Warning: 'as(not null)' on non nullable type.
alt/base_as_notnull_alt1.nit:43,6: Warning: 'as(not null)' on non nullable type.
alt/base_as_notnull_alt1.nit:50,6: Warning: 'as(not null)' on non nullable type.
alt/base_as_notnull_alt1.nit:50,6--19: Type error: expected B, got A
alt/base_as_notnull_alt1.nit:52,6: Warning: 'as(not null)' on non nullable type.