message: Fix MSVC signed/unsigned conversion and size_t conversion warnings
diff: @@ -134,7 +134,7 @@ bool SwiftHashedContainerNativeBufferHandler::ReadBitmaskAtIndex(Index i) {
  m_bitmask_cache[effective_ptr] = data;
  }
  - const uint64_t mask = (1UL << offset);
  + const uint64_t mask = static_cast<uint64_t>(1UL << offset);
  const uint64_t value = (data & mask);
  #ifdef DICTIONARY_IS_BROKEN_AGAIN
  printf("data = 0x%" PRIx64 ", mask = 0x%" PRIx64 ", value = 0x%" PRIx64 "\n",
  