Hello Stefan,
as far as I know there is no standard way to exclude generated objects. ATC / Code Inspector analyse by default any object that gets transported. Consider a syntax error in generated code, for sure one would get a warning regardless wether the program is handicraft or maintained by a generator. Generated code might also have a direct relation to developer input (for sample BSP). To my impression disabling any analysis just because code is generated might have undesired side effects.
I can imagine that the majority of disturbance is caused by the combination of few pairs of checks and object types. Does this assumption match your expieriences?
Klaus