Method MapIds

source/diff/diff.cpp:146–149

      : src_to_dst_(src_id_bound), dst_to_src_(dst_id_bound) {}

  void MapIds(uint32_t src, uint32_t dst) {
    src_to_dst_.MapIds(src, dst);
    dst_to_src_.MapIds(dst, src);
  }

  uint32_t MappedDstId(uint32_t src) {
    uint32_t dst = src_to_dst_.MappedId(src);