Function appendToStack

misc/test-browser/mocha.js:16807–16812

(el)

    });

    function appendToStack(el) {
      // Don't call .appendChild if #mocha-report was already .shift()'ed off the stack.
      if (stack[0]) {
        stack[0].appendChild(el);
      }
    }

    function updateStats() {
      // TODO: add to stats