if (debug) { System.err.println("Program after IntroduceMultiPops"); SIRToStreamIt.run(str,new JInterfaceDeclaration[]{},new SIRInterfaceTable[]{},new SIRStructure[]{}); System.err.println("End of program after IntroduceMultiPops"); }
    public static void doit(SIRStream str) {        new IntroduceMultiPops().introduceMultiProps(str);    }