Remove R-Value reference in AddOp
Remove R-Value reference in AddOp

Fit Google C++ Style

PaddlePaddle/Paddle,QiJune/Paddle,yu239/Paddle,jacquesqiao/Paddle,Canpio/Paddle,pkuyym/Paddle,pkuyym/Paddle,putcn/Paddle,lcy-seso/Paddle,pengli09/Paddle,pengli09/Paddle,PaddlePaddle/Paddle,reyoung/Paddle,PaddlePaddle/Paddle,baidu/Paddle,Canpio/Paddle,luotao1/Paddle,pengli09/Paddle,pkuyym/Paddle,pkuyym/Paddle,tensor-tang/Paddle,lcy-seso/Paddle,hedaoyuan/Paddle,yu239/Paddle,pkuyym/Paddle,lcy-seso/Paddle,chengduoZH/Paddle,lcy-seso/Paddle,yu239/Paddle,lispc/Paddle,luotao1/Paddle,Canpio/Paddle,luotao1/Paddle,baidu/Paddle,lispc/Paddle,hedaoyuan/Paddle,yu239/Paddle,Canpio/Paddle,PaddlePaddle/Paddle,QiJune/Paddle,pengli09/Paddle,chengduoZH/Paddle,hedaoyuan/Paddle,QiJune/Paddle,baidu/Paddle,jacquesqiao/Paddle,tensor-tang/Paddle,chengduoZH/Paddle,QiJune/Paddle,QiJune/Paddle,tensor-tang/Paddle,hedaoyuan/Paddle,reyoung/Paddle,luotao1/Paddle,hedaoyuan/Paddle,reyoung/Paddle,yu239/Paddle,putcn/Paddle,tensor-tang/Paddle,hedaoyuan/Paddle,lispc/Paddle,tensor-tang/Paddle,lcy-seso/Paddle,PaddlePaddle/Paddle,Canpio/Paddle,lispc/Paddle,chengduoZH/Paddle,lispc/Paddle,pengli09/Paddle,yu239/Paddle,PaddlePaddle/Paddle,putcn/Paddle,yu239/Paddle,jacquesqiao/Paddle,lispc/Paddle,reyoung/Paddle,reyoung/Paddle,putcn/Paddle,baidu/Paddle,pkuyym/Paddle,pengli09/Paddle,QiJune/Paddle,pengli09/Paddle,jacquesqiao/Paddle,hedaoyuan/Paddle,Canpio/Paddle,jacquesqiao/Paddle,lispc/Paddle,lcy-seso/Paddle,luotao1/Paddle,hedaoyuan/Paddle,chengduoZH/Paddle,putcn/Paddle,pengli09/Paddle,luotao1/Paddle,Canpio/Paddle,yu239/Paddle,lispc/Paddle,luotao1/Paddle,PaddlePaddle/Paddle,baidu/Paddle,putcn/Paddle,reyoung/Paddle,Canpio/Paddle,jacquesqiao/Paddle