bug #889: fix protected typedef

Eigen/src/IterativeLinearSolvers/SolveWithGuess.h

diff --git a/Eigen/src/IterativeLinearSolvers/SolveWithGuess.h b/Eigen/src/IterativeLinearSolvers/SolveWithGuess.h
index 6cd4872..251c6fa 100644
--- a/Eigen/src/IterativeLinearSolvers/SolveWithGuess.h
+++ b/Eigen/src/IterativeLinearSolvers/SolveWithGuess.h
@@ -42,6 +42,7 @@
 {
 public:
   typedef typename RhsType::Index Index;
+  typedef typename internal::traits<SolveWithGuess>::Scalar Scalar;
   typedef typename internal::traits<SolveWithGuess>::PlainObject PlainObject;
   typedef typename internal::generic_xpr_base<SolveWithGuess<Decomposition,RhsType,GuessType>, MatrixXpr, typename internal::traits<RhsType>::StorageKind>::type Base;
   
@@ -61,8 +62,6 @@
   const RhsType       &m_rhs;
   const GuessType     &m_guess;
   
-  typedef typename internal::traits<SolveWithGuess>::Scalar Scalar;
-  
 private:
   Scalar coeff(Index row, Index col) const;
   Scalar coeff(Index i) const;