message: Silence unused variable warning with MFEM_CONTRACT_VAR
diff: @@ -4027,6 +4027,8 @@ void QuadratureFunction::ProjectCoefficient(SymmetricMatrixCoefficient &coeff)
  {
  const int height = coeff.GetHeight();
  const int width = coeff.GetWidth();
  + MFEM_CONTRACT_VAR(height);
  + MFEM_CONTRACT_VAR(width);
  MFEM_ASSERT(height == width && vdim == height*(height+1)/2, "Wrong sizes.");
  Mesh &mesh = *qspace->GetMesh();
  DenseMatrix values;
  