alt/base_notnull_alt3.nit:23,7: Type Error: expected `Object`, got `null`.
alt/base_notnull_alt3.nit:24,7: Type Error: expected `Object`, got `null`.
alt/base_notnull_alt3.nit:25,6: Warning: expression is always `null`.
alt/base_notnull_alt3.nit:27,12: Type Error: expected `Object`, got `null`.
alt/base_notnull_alt3.nit:28,6: Warning: expression is always `null`.
alt/base_notnull_alt3.nit:30,12: Type Error: expected `Object`, got `null`.
alt/base_notnull_alt3.nit:31,7: Warning: expression is always `null`.
alt/base_notnull_alt3.nit:31,7--20: Type Error: `as(not null)` on `null`.
alt/base_notnull_alt3.nit:32,7: Warning: expression is always `null`.
alt/base_notnull_alt3.nit:32,7--20: Type Error: `as(not null)` on `null`.
alt/base_notnull_alt3.nit:33,7: Warning: expression is always `null`.
alt/base_notnull_alt3.nit:34,7: Warning: expression is always `null`.
alt/base_notnull_alt3.nit:35,7: Warning: expression is always `null`.
alt/base_notnull_alt3.nit:35,7--17: Type Error: expected `Object`, got `null`.
alt/base_notnull_alt3.nit:36,7: Warning: expression is always `null`.
alt/base_notnull_alt3.nit:36,7--17: Type Error: expected `Object`, got `null`.