Reflection_Engine: possibility to clear events that occurred in nested methods

#### Description:

I think it'd be useful to be able to clear events (like warnings and errors) that occurred in nested methods. Sometimes when I use other methods inside the main one I am aware that they can return nulls and events and I cover it in a code. As the result the main method works fine but the node turns red because of errors in nested methods.
Am I correct that we should be able to clear those errors or they shouldn't appear in a properly written code?