“6a0c3428745603c2ae8b0749b2d6aa66bee6ed52”上不存在“python/paddle/v2/fluid/tests/unittests/test_recurrent_op.py”
* Chage `IndicateDataType` to `GetKernelType`. Make it easier to understand. * Change `OpKernelKey` to `OpKernelType` * Make operator developers can customize which kernel the operator will use in runtime.