Cleanup typedefs a bit

dune/fufem/assemblers/localassemblers/geomexactstvenantkirchhoffoperatorassembler.hh

@@ -45,16 +45,19 @@ class GeomExactStVenantKirchhoffOperatorAssembler
 
     static const int dim = GridType::dimension;
     typedef typename GridType::ctype ctype;
+    using field_type = typename AnsatzLocalFE::Traits::LocalBasisType::Traits::RangeFieldType;
 
-    typedef Dune::VirtualFunction<Dune::FieldVector<ctype,dim>, Dune::FieldVector<ctype,dim> > Function;
+    typedef Dune::VirtualFunction<Dune::FieldVector<ctype, dim>, Dune::FieldVector<field_type, dim> > Function;
     typedef VirtualGridFunction<GridType, Dune::FieldVector<ctype, dim> > GridFunction;
 
-public:
-    typedef typename Dune::FieldMatrix<ctype,dim,dim> T;
+    typedef Dune::FieldMatrix<field_type, dim, dim> T;
+    using Base = LocalOperatorAssembler < GridType, TrialLocalFE, AnsatzLocalFE, T >;
 
-    typedef typename LocalOperatorAssembler < GridType, TrialLocalFE, AnsatzLocalFE, T >::Element Element;
-    typedef typename LocalOperatorAssembler < GridType, TrialLocalFE, AnsatzLocalFE,T >::BoolMatrix BoolMatrix;
-    typedef typename LocalOperatorAssembler < GridType, TrialLocalFE, AnsatzLocalFE,T >::LocalMatrix LocalMatrix;
+public:
+    using MatrixEntry = typename Base::MatrixEntry;
+    using Element = typename Base::Element;
+    using BoolMatrix = typename Base::BoolMatrix;
+    using LocalMatrix = typename Base::LocalMatrix;
 
    GeomExactStVenantKirchhoffOperatorAssembler(ctype E, ctype nu, std::shared_ptr<GridFunction> configuration)
         : E_(E), nu_(nu), configuration_(configuration)