leo/compiler/tests/circuits/mut_self_function_fail.leo

circuit Foo {
    a: u8,

    function bar() {}

    function set_a(mut self, new: u8) {
        self.bar = new;
    }
}

function main() {
    let f = Foo { a: 0u8 };

    f.set_a(1u8);
}