Fix new buffer from buffer test for Object implementation
Fix new buffer from buffer test for Object implementation

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