DESCRIPTIONExtUtils::XSpp::Node is a base class for all elements of the parser's output.
newCalls the "$self-"init(@_)> method after construction. Override "init()" in subclasses.
initCalled by the constructor. Every sub-class needs to override this.
ExtUtils::XSpp::Node::printReturn a string to be output in the final XS file. Every sub-class must override this method.