Add debug of broken expression to nodelist
Add debug of broken expression to nodelist

If an expression is invalid, have nodelist give the error data
allowing the user to see and potentially take action.

xcat2/confluent,whowutwut/confluent,jjohnson42/confluent,jjohnson42/confluent,xcat2/confluent,whowutwut/confluent,jjohnson42/confluent,xcat2/confluent,whowutwut/confluent,jjohnson42/confluent,jjohnson42/confluent,xcat2/confluent,xcat2/confluent,whowutwut/confluent