A Naperville public school district did not violate anti-discrimination law when it blocked a student who had moved outside the district from remaining at her high school for her senior year, a federal judge held.In a written opinion last week, U.S. Magistrate Judge Jeffrey T. Gilbert granted summary judgment in favor of Naperville Community Unit School District 203 in a lawsuit brought by the student.Gilbert sidestepped many of the student’s arguments, finding her discrimination claim failed even assuming she were a …