- remove Eval/EvalOMP (moving them to a disabled/ subdir in order

to preserve SVN history). They are made useless by the new
  ei_eval_unless_lazy.
- introduce a generic Eval member typedef so one can do e.g.
  T t; U u; Product<T, U>::Eval m; m = t*u;

Eigen/src/Core/Util.h

@@ -117,7 +117,13 @@ enum { RowsAtCompileTime = Base::RowsAtCompileTime, \
        SizeAtCompileTime = Base::SizeAtCompileTime, \
        MaxSizeAtCompileTime = Base::MaxSizeAtCompileTime, \
        IsVectorAtCompileTime = Base::IsVectorAtCompileTime, \
-       Flags = Base::Flags };
+       Flags = Base::Flags }; \
+typedef Matrix<Scalar, \
+               RowsAtCompileTime, \
+               ColsAtCompileTime, \
+               Flags, \
+               MaxRowsAtCompileTime, \
+               MaxColsAtCompileTime> Eval;
 
 #define EIGEN_GENERIC_PUBLIC_INTERFACE(Derived) \
 _EIGEN_GENERIC_PUBLIC_INTERFACE(Derived, Eigen::MatrixBase<Derived>) \