message: Add MFEM_CONTRACT_VAR
diff: @@ -52,6 +52,7 @@ void HypreStealOwnership(HypreParMatrix &A_hyp, SparseMatrix &A_diag)
  #ifndef HYPRE_BIGINT
  bool own_i = A_hyp.GetDiagMemoryI().OwnsHostPtr();
  bool own_j = A_hyp.GetDiagMemoryJ().OwnsHostPtr();
  + MFEM_CONTRACT_VAR(own_j);
  MFEM_ASSERT(own_i == own_j, "Inconsistent ownership");
  if (!own_i)
  {
  