message: thread-local-heap: add a d_assert after allocSmallMiniheap
diff: @@ -42,6 +42,7 @@ void *ThreadLocalHeap::smallAllocSlowpath(size_t sizeClass) {
  const size_t sizeMax = SizeMap::ByteSizeForClass(sizeClass);
  MiniHeap *mh = _global->allocSmallMiniheap(sizeClass, sizeMax);
  + d_assert(mh != nullptr);
  freelist.attach(mh);
  