Fix for scalars in Link.to_chainerx
Fix for scalars in Link.to_chainerx

niboshi/chainer,niboshi/chainer,niboshi/chainer,keisuke-umezawa/chainer,ktnyt/chainer,keisuke-umezawa/chainer,jnishi/chainer,wkentaro/chainer,tkerola/chainer,chainer/chainer,wkentaro/chainer,okuta/chainer,jnishi/chainer,chainer/chainer,okuta/chainer,hvy/chainer,niboshi/chainer,hvy/chainer,ktnyt/chainer,keisuke-umezawa/chainer,chainer/chainer,wkentaro/chainer,ktnyt/chainer,ktnyt/chainer,wkentaro/chainer,jnishi/chainer,pfnet/chainer,hvy/chainer,jnishi/chainer,chainer/chainer,okuta/chainer,keisuke-umezawa/chainer,okuta/chainer,hvy/chainer