at.dms.util.Utils.fail("Use SLIR visitor to visit an SIR node.");
arg.accept(p);
    public void accept(KjcVisitor p) {	if (p instanceof SLIRVisitor) {	    ((SLIRVisitor)p).visitPrintStatement(this, arg);	} else {	    at.dms.util.Utils.fail("Use SLIR visitor to visit an SIR node.");	}    }