function test() {

// RegExp.prototype[Symbol.split] -> Get -> [[Get]]
var get = [];
var constructor = Function();
constructor[Symbol.species] = Object;
var p = new Proxy({ constructor: constructor, flags: '', exec: function() { return null; } }, { get: function(o, k) { get.push(k); return o[k]; }});
RegExp.prototype[Symbol.split].call(p, "");
return get + '' === "constructor,flags,exec";
      
}

if (!test())
    throw new Error("Test failed");