Insert `astype` before `where` method to avoid cuda6.5 bug
Insert `astype` before `where` method to avoid cuda6.5 bug

kashif/chainer,niboshi/chainer,hvy/chainer,ronekko/chainer,wkentaro/chainer,chainer/chainer,muupan/chainer,wkentaro/chainer,sinhrks/chainer,aonotas/chainer,cupy/cupy,niboshi/chainer,cemoody/chainer,okuta/chainer,jnishi/chainer,hvy/chainer,delta2323/chainer,hvy/chainer,okuta/chainer,anaruse/chainer,ktnyt/chainer,chainer/chainer,ysekky/chainer,keisuke-umezawa/chainer,chainer/chainer,ktnyt/chainer,ktnyt/chainer,kikusu/chainer,okuta/chainer,niboshi/chainer,t-abe/chainer,pfnet/chainer,truongdq/chainer,jnishi/chainer,cupy/cupy,jnishi/chainer,cupy/cupy,kiyukuta/chainer,wkentaro/chainer,chainer/chainer,niboshi/chainer,benob/chainer,kikusu/chainer,t-abe/chainer,wkentaro/chainer,rezoo/chainer,keisuke-umezawa/chainer,ktnyt/chainer,hvy/chainer,jnishi/chainer,tkerola/chainer,okuta/chainer,AlpacaDB/chainer,truongdq/chainer,keisuke-umezawa/chainer,cupy/cupy,benob/chainer,keisuke-umezawa/chainer,sinhrks/chainer,muupan/chainer,AlpacaDB/chainer