code: public static String instructionListToString(InstructionList il, ConstantPoolGen pool) {
  
      StringBuilder out = new StringBuilder();
      for (Iterator<InstructionHandle> i = il.iterator(); i.hasNext(); ) {
        InstructionHandle handle = i.next();
        out.append(handle.getInstruction().toString(pool.getConstantPool()) + "\n");
      }
      return out.toString();
    }
docs: Return a printed description of the given instructions.
  
  @param il the instructions to describe
  @param pool the constant pool the instructions refer to
  @return a printed representation of the instructions in {@code il}