code: function getTextNodeID(textNode) {
          var childIndex = textNode.parent.children.indexOf(textNode);
          if (childIndex === 0) {
              return textNode.parent.tagID + ".0";
          }
          return textNode.parent.children[childIndex - 1].tagID + "t";
      }
docs: @private
  
  Generates a synthetic ID for text nodes. These IDs are only used
  for convenience when reading a SimpleDOM that is dumped to the console.
  
  @param {Object} textNode new node for which we are generating an ID
  @return {string} ID for the node