Get rid of include directives inside namespace blocks (bug #339).

Eigen/src/Eigen2Support/SVD.h

@@ -25,6 +25,8 @@
 #ifndef EIGEN2_SVD_H
 #define EIGEN2_SVD_H
 
+namespace Eigen {
+
 /** \ingroup SVD_Module
   * \nonstableyet
   *
@@ -646,4 +648,6 @@ MatrixBase<Derived>::svd() const
   return SVD<PlainObject>(derived());
 }
 
+} // end namespace Eigen
+
 #endif // EIGEN2_SVD_H