arguments.callee.caller does not work anymore with ES6

Impossible to get the this of caller function | Constructor.

It seems : NodeJS , Client-Side(Firefox,....) are avoid arguments.callee.caller with ES6 ,

Any solution to this problem ,known that ,

my ES5 code is : ✓

function setProp(prop,val){
    arguments.callee.caller.prototype[prop]=val;
}

function Person(){
   setProp('birthday',new Date());
   return this;
}

Wanted ES6 : ✘

function setProp(prop,val){
   arguments.callee.caller.prototype[prop]=val;  //--- Throw ERROR
   //Another attempt : arguments.callee(true).caller[prop]=val //--- throw Error
}
class Person{

   constructor(){
      setProp('birthday',new Date())
   }
} 

We try to convert setProp to arrow-function . however this means window and arguments is undefined there