Always create variables in analysis_predictor before OptimizeInferenceProgram. (#15533)
Always create variables in analysis_predictor before OptimizeInferenceProgram. (#15533)

Otherwise, some other persistable variable (like RAW type) will not be created
baidu/Paddle,PaddlePaddle/Paddle,baidu/Paddle,PaddlePaddle/Paddle,tensor-tang/Paddle,luotao1/Paddle,chengduoZH/Paddle,luotao1/Paddle,luotao1/Paddle,baidu/Paddle,PaddlePaddle/Paddle,tensor-tang/Paddle,chengduoZH/Paddle,PaddlePaddle/Paddle,baidu/Paddle,luotao1/Paddle,PaddlePaddle/Paddle,chengduoZH/Paddle,PaddlePaddle/Paddle,luotao1/Paddle,tensor-tang/Paddle,tensor-tang/Paddle,luotao1/Paddle,luotao1/Paddle,PaddlePaddle/Paddle,chengduoZH/Paddle,baidu/Paddle,tensor-tang/Paddle,chengduoZH/Paddle