

    i18 : i="a b c";

    i19 : for i to 3 list j := i+1			<==== should we warn here, too, as below?

    o19 = {1, 2, 3, 4}

    o19 : List

    i20 : j := 4

    o20 = 4

    i21 : j := 5
    stdio:21:1:(3): warning: local declaration of j shields variable with same name

    o21 = 5
