message: Realign AllocationInfo struct.
  After adding offline_offset, sizeof(AllocationInfo) = 40, which caused
  hello_world_test to crash. After realigning it's back to its original
  size (32).
diff: @@ -34,11 +34,11 @@ namespace {
  // Used to hold information used during allocation calculations.
  struct AllocationInfo {
  size_t bytes;
  + void** output_ptr;
  int first_created;
  int last_used;
  - bool needs_allocating;
  - void** output_ptr;
  int32_t offline_offset;
  + bool needs_allocating;
  };
  // We align tensor buffers to 16-byte boundaries, since this is a common
  