Operations tests

[frame-lang]

fn main {
     print(#OperationsDemo.add(2,1))
     var od:# = #OperationsDemo()
     print(od.sub(2,1))
}

#OperationsDemo 

    -operations-

    #[static]
    add [a,b] {
        ^(a+b)
    }

    sub [a,b] {
        ^(a-b)
    }


##