message: Use orig_mesh.Conforming() instead of orig_mesh.ncmesh == NULL
diff: @@ -4025,7 +4025,7 @@ void Mesh::MakeSimplicial_(const Mesh &orig_mesh, int *vglobal)
  {
  MFEM_VERIFY(const_cast<Mesh&>(orig_mesh).CheckElementOrientation(false) == 0,
  "Mesh::MakeSimplicial requires a properly oriented input mesh");
  - MFEM_VERIFY(orig_mesh.ncmesh == NULL,
  + MFEM_VERIFY(orig_mesh.Conforming(),
  "Mesh::MakeSimplicial does not support non-conforming meshes.")
  int dim = orig_mesh.Dimension();
  