Test NumDescendants() and Descendant() instead of Begin() and Count() (since those will eventually be removed).
Test NumDescendants() and Descendant() instead of Begin() and Count() (since
those will eventually be removed).


trungda/mlpack,erubboli/mlpack,bmswgnp/mlpack,minhpqn/mlpack,Azizou/mlpack,minhpqn/mlpack,ranjan1990/mlpack,erubboli/mlpack,trungda/mlpack,darcyliu/mlpack,ranjan1990/mlpack,erubboli/mlpack,stereomatchingkiss/mlpack,ersanliqiao/mlpack,stereomatchingkiss/mlpack,ajjl/mlpack,datachand/mlpack,thirdwing/mlpack,datachand/mlpack,lezorich/mlpack,thirdwing/mlpack,stereomatchingkiss/mlpack,BookChan/mlpack,ajjl/mlpack,ersanliqiao/mlpack,bmswgnp/mlpack,chenmoshushi/mlpack,Azizou/mlpack,datachand/mlpack,palashahuja/mlpack,chenmoshushi/mlpack,BookChan/mlpack,palashahuja/mlpack,trungda/mlpack,Azizou/mlpack,chenmoshushi/mlpack,minhpqn/mlpack,lezorich/mlpack,theranger/mlpack,ranjan1990/mlpack,lezorich/mlpack,theranger/mlpack,ersanliqiao/mlpack,BookChan/mlpack,darcyliu/mlpack,palashahuja/mlpack,darcyliu/mlpack,theranger/mlpack,bmswgnp/mlpack,ajjl/mlpack,thirdwing/mlpack