Fix creation of cupy empty_like from numpy
Fix creation of cupy empty_like from numpy

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