Add tests for MakeSimilar
Add tests for MakeSimilar

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