code: function getTokenBeforeClosingBracket(node) {
    var attributes = node.attributes;
    if (attributes.length === 0) {
      return node.name;
    }
    return attributes[attributes.length - 1];
  }
docs: Find the token before the closing bracket.
  @param {ASTNode} node - The JSX element node.
  @returns {Token} The token before the closing bracket.