Temporary workaround for bug 875: Let TriangularView<Sparse>::nonZeros() return nonZeros() of the nested expression
Temporary workaround for bug 875:
Let TriangularView<Sparse>::nonZeros() return nonZeros() of the nested expression

mjbshaw/Eigen,rotorliu/eigen,madlib/eigen_backup,madlib/eigen_backup,madlib/eigen_backup,mjbshaw/Eigen,madlib/eigen_backup,rotorliu/eigen,mjbshaw/Eigen,mjbshaw/Eigen,rotorliu/eigen,rotorliu/eigen