1 alt/base_as_notnull_alt6.nit:41,6: Warning: 'as(not null)' on non nullable type.
2 alt/base_as_notnull_alt6.nit:42,6--7: Warning: 'as(not null)' on non nullable type.
3 alt/base_as_notnull_alt6.nit:43,6: Warning: 'as(not null)' on non nullable type.
4 alt/base_as_notnull_alt6.nit:52,6: Warning: 'as(not null)' on non nullable type.
5 Runtime error: Cast failed (alt/base_as_notnull_alt6.nit:60)