a cleaner prototype setup for coffeescript

widget.after.js

var Widget;
Widget = new function() {
  function Widget() {}
  Widget.prototype = this;
  this.foo = function() {};
  this.bar = function() {};
  this.baz = function() {};
  return Widget;
};

widget.before.js

var Widget;
Widget = (function() {
  function Widget() {}
  Widget.prototype.foo = function() {};
  Widget.prototype.bar = function() {};
  Widget.prototype.baz = function() {};
  return Widget;
})();

widget.coffee

class Widget
  foo: ->
  bar: ->
  baz: ->