string_plus_optimization: {
    options = {
        side_effects  : true,
        evaluate      : true,
        conditionals  : true,
        comparisons   : true,
        dead_code     : true,
        booleans      : true,
        unused        : true,
        if_return     : true,
        join_vars     : true,
        cascade       : true,
        hoist_funs    : true,
    };
    input: {
        function foo(anything) {
            function throwing_function() {
                throw "nope";
            }
            try {
                console.log('0' + throwing_function() ? "yes" : "no");
            } catch (ex) {
                console.log(ex);
            }
            console.log('0' + anything ? "yes" : "no");
            console.log(anything + '0' ? "Yes" : "No");
            console.log('' + anything);
            console.log(anything + '');
        }
        foo();
    }
    expect: {
        function foo(anything) {
            function throwing_function() {
                throw "nope";
            }
            try {
                console.log('0' + throwing_function() ? "yes" : "no");
            } catch (ex) {
                console.log(ex);
            }
            console.log("yes");
            console.log("Yes");
            console.log('' + anything);
            console.log(anything + '');
        }
        foo();
    }
}