Nested catch and throw do not seem to work properly

@Gordon, It runs as is on 1v80.280 so far. I will try the new build today.

I used a timing approach fairly basic as below:

// chronometer functionnalities

var Chrono = function (heure) {
  this.reset();
  this.createdAt = heure;
};

Chrono.prototype.reset = function () {
  this.meanTime=0;
  this.nlines=0;
  this.duration=0;
};

Chrono.prototype.start = function () {
  this.starttime= getTime();
};

Chrono.prototype.leap = function () {
  this.nlines++;
};

Chrono.prototype.stop= function () {
  this.duration+=getTime()-this.starttime;­
  this.meanTime=this.duration/this.nlines;­
};

Chrono.prototype.toString= function(radix) {
};

var mychrono = new Chrono(getTime());

mychrono is then called at proper places in the gps loop.