+base_isa.nit:39,2--13: Warning: expression is already a `Object`.
+base_isa.nit:49,2--13: Warning: expression is already a `Object`.
true
true
true
true
true
true
-base_isa.nit:39,2--13: Warning: Expression is already a Object.
-base_isa.nit:49,2--13: Warning: Expression is already a Object.