make generic (u)int ops work when TYPED_ARRAY_SUPPORT is false
make generic (u)int ops work when TYPED_ARRAY_SUPPORT is false

nolanlawson/buffer,kawanet/buffer,beni55/buffer,LiuDeng/buffer,btd/buffer,btd/buffer,LinusU/buffer,feross/buffer,jessetane/buffer,SAGV/buffer,kawanet/buffer,nolanlawson/buffer,feross/buffer,loon3/buffer,SAGV/buffer,loon3/buffer,LiuDeng/buffer,feross/buffer,beni55/buffer,LinusU/buffer