Fix type mismatch of float vs singleton array
Fix type mismatch of float vs singleton array

jnishi/chainer,ysekky/chainer,wkentaro/chainer,bayerj/chainer,cupy/cupy,ktnyt/chainer,yanweifu/chainer,wavelets/chainer,tereka114/chainer,kuwa32/chainer,kiyukuta/chainer,ytoyama/yans_chainer_hackathon,tscohen/chainer,nushio3/chainer,chainer/chainer,jnishi/chainer,sou81821/chainer,sinhrks/chainer,kikusu/chainer,ikasumi/chainer,Kaisuke5/chainer,cupy/cupy,ktnyt/chainer,keisuke-umezawa/chainer,chainer/chainer,chainer/chainer,umitanuki/chainer,AlpacaDB/chainer,muupan/chainer,niboshi/chainer,kikusu/chainer,ktnyt/chainer,hvy/chainer,tigerneil/chainer,aonotas/chainer,jnishi/chainer,ttakamura/chainer,hvy/chainer,rezoo/chainer,wkentaro/chainer,hvy/chainer,woodshop/complex-chainer,wkentaro/chainer,anaruse/chainer,cemoody/chainer,tkerola/chainer,delta2323/chainer,ktnyt/chainer,ronekko/chainer,masia02/chainer,okuta/chainer,sinhrks/chainer,elviswf/chainer,keisuke-umezawa/chainer,hidenori-t/chainer,1986ks/chainer,chainer/chainer,keisuke-umezawa/chainer,jfsantos/chainer,okuta/chainer,AlpacaDB/chainer,niboshi/chainer,muupan/chainer,okuta/chainer,laysakura/chainer,truongdq/chainer,pfnet/chainer,niboshi/chainer,keisuke-umezawa/chainer,okuta/chainer,jnishi/chainer,minhpqn/chainer,cupy/cupy,nushio3/chainer,truongdq/chainer,kashif/chainer,t-abe/chainer,wkentaro/chainer,niboshi/chainer,woodshop/chainer,ttakamura/chainer,benob/chainer,t-abe/chainer,cupy/cupy,benob/chainer,hvy/chainer