Fix operator.cc

paddle/fluid/framework/operator.cc

@@ -569,7 +569,7 @@ void OperatorWithKernel::RunImpl(const Scope& scope,
   }
 }
 
-proto::DataType OperatorWithKernel::IndicateDataType(
+proto::VarType::Type OperatorWithKernel::IndicateDataType(
     const ExecutionContext& ctx) const {
   auto& scope = ctx.scope();
   int data_type = -1;
@@ -595,7 +595,7 @@ proto::DataType OperatorWithKernel::IndicateDataType(
     }
   }
   PADDLE_ENFORCE(data_type != -1, "DataType should be indicated by input");
-  return static_cast<proto::DataType>(data_type);
+  return static_cast<proto::VarType::Type>(data_type);
 }
 
 OpKernelType OperatorWithKernel::GetExpectedKernelType(