text: var burrito = require('burrito');
  var json = require('jsonify');
  
  var src = [
      'function f () { g() }',
      'function g () { h() }',
      'function h () { throw "moo" + Array(x).join("!") }',
      'var x = 4',
      'f()'
  ].join('\r\n');
  
  window.onload = function () {
      burrito(src, function (node) {
          document.body.innerHTML += node.name + '<br>\n';
      });
  };
  if (document.readyState === 'complete') window.onload();
  