code: function getVariablesList() {
    const type = NodeType.VariablesListType;
    const token = tokens[pos];
    const line = token.ln;
    const column = token.col;
    const content = [getVariable()];
    const end = getLastPosition(content, line, column, 3);
  
    // Skip `...`.
    pos += 3;
  
    return newNode(type, content, line, column, end);
  }
docs: Get node with a variables list
  @return {Array} `['variableslist', ['variable', ['ident', x]]]` where
  `x` is a variable name.