{   // new StringBuffer("...").append(Z) = new StringBuffer("....")
            {
                new ConstantInstruction(InstructionConstants.OP_LDC, A),
                new ConstantInstruction(InstructionConstants.OP_INVOKESPECIAL, METHOD_STRINGBUFFER_INIT_STRING),
                new SimpleInstruction(InstructionConstants.OP_ICONST_0, B),