The recursive function, that goes over all children of a particular node (i.e. function info).
function ResetIndexes(new_parent_index, old_parent_index) {
      var previous_sibling = -1;
      while (current_index < compile_info.length &&
          compile_info[current_index].outer_index == old_parent_index) {
        var saved_index = current_index;
        compile_info[saved_index].outer_index = new_parent_index;
        if (previous_sibling != -1) {
          compile_info[previous_sibling].next_sibling_index = saved_index;
        }
        previous_sibling = saved_index;
        current_index++;
        ResetIndexes(saved_index, old_index_map[saved_index]);
      }
      if (previous_sibling != -1) {
        compile_info[previous_sibling].next_sibling_index = -1;
      }
    }