message: Small warning fixes
diff: @@ -92,7 +92,7 @@ int main(int argc, char *argv[])
  GridFunction *phi = mesh.GetNodes();
  GridFunction phi_new(phi->FESpace());
  - std::vector<GridFunction> phi_i(3);
  + GridFunction phi_i[3];
  for (int i=0; i<sdim; ++i) { phi_i[i].SetSpace(&fespace); }
  ConstantCoefficient zero(0.0);
  @@ -134,7 +134,7 @@ int main(int argc, char *argv[])
  a.Mult(phi_i[i], b);
  b.ProjectBdrCoefficient(zero, ess_bdr);
  #ifndef MFEM_USE_SUITESPARSE
  - GSSmoother M((SparseMatrix&)(*A0));
  + GSSmoother M(static_cast<SparseMatrix&>(*A0));
  PCG(*A0, M, b, x, 1, 200, 1e-12, 0.0);
  #else
  A0_inv.Mult(b, x);
  