base_isa1.nit:56,9--15: Warning: Expression is already a A since it is a G.
base_isa1.nit:56,8--16: Warning: superfluous parentheses.
base_isa1.nit:58,9--15: Warning: Expression is already a B since it is a D.
base_isa1.nit:58,8--16: Warning: superfluous parentheses.
true