function f1(a = 1, b = function () { 
        return a + c();
    }, c = () => {
        return eval("b.length + a"); /**bp:stack();setFrame(3);locals()**/
    }) {
        var m = eval("b()");
    }
bp:logJson("Stepping on default params - Split scope function with zero reg slots in param and print the body scope")*