code: public AbstractInsnNode[] toArray() {
          int i = 0;
          AbstractInsnNode elem = first;
          AbstractInsnNode[] insns = new AbstractInsnNode[size];
          while (elem != null) {
              insns[i] = elem;
              elem.index = i++;
              elem = elem.next;
          }
          return insns;
      }
docs: Returns an array containing all of the instructions in this list.
  
  @return an array containing all of the instructions in this list.