Add forward typecheck to Dropout
Add forward typecheck to Dropout

chainer/chainer,rezoo/chainer,keisuke-umezawa/chainer,ktnyt/chainer,jnishi/chainer,hidenori-t/chainer,niboshi/chainer,niboshi/chainer,chainer/chainer,okuta/chainer,laysakura/chainer,umitanuki/chainer,wkentaro/chainer,aonotas/chainer,jnishi/chainer,wavelets/chainer,delta2323/chainer,hvy/chainer,cupy/cupy,chainer/chainer,sinhrks/chainer,truongdq/chainer,tscohen/chainer,cemoody/chainer,tkerola/chainer,masia02/chainer,ktnyt/chainer,keisuke-umezawa/chainer,ktnyt/chainer,sou81821/chainer,woodshop/chainer,AlpacaDB/chainer,pfnet/chainer,cupy/cupy,okuta/chainer,cupy/cupy,jfsantos/chainer,kuwa32/chainer,hvy/chainer,chainer/chainer,hvy/chainer,hvy/chainer,t-abe/chainer,elviswf/chainer,kashif/chainer,niboshi/chainer,woodshop/complex-chainer,kikusu/chainer,anaruse/chainer,cupy/cupy,kikusu/chainer,niboshi/chainer,sinhrks/chainer,ronekko/chainer,muupan/chainer,yanweifu/chainer,benob/chainer,wkentaro/chainer,muupan/chainer,okuta/chainer,wkentaro/chainer,minhpqn/chainer,tigerneil/chainer,wkentaro/chainer,kiyukuta/chainer,jnishi/chainer,jnishi/chainer,1986ks/chainer,keisuke-umezawa/chainer,okuta/chainer,ytoyama/yans_chainer_hackathon,t-abe/chainer,ikasumi/chainer,truongdq/chainer,keisuke-umezawa/chainer,ysekky/chainer,AlpacaDB/chainer,benob/chainer,Kaisuke5/chainer,ktnyt/chainer