[src] Fix bug when compiling with flag -DNDEBUG (#2162)

Author: satmass

src/lat/compose-lattice-pruned.cc

@@ -757,7 +757,8 @@ void PrunedCompactLatticeComposer::ProcessTransition(int32 src_composed_state,
  if (ret.second) {
  // Successfully inserted. Most of the rest of this block deals with the
  // consequences of adding a new state.
- KALDI_ASSERT(clat_out_->AddState() == new_composed_state);
+ int32 ans = clat_out_->AddState();
+ KALDI_ASSERT(ans == new_composed_state);
  dest_composed_state = new_composed_state;
  composed_state_info_.resize(dest_composed_state + 1);
  dest_info = &(composed_state_info_[dest_composed_state]);