SPRINGFIELD — Most of the justices on Illinois’ top court agreed: Probable cause for an arrest was not simply wiped out when a law was later found to be unconstitutional.That means a man who was arrested for breaking a gun law that was ultimately struck down under the Second Amendment could still be prosecuted for evidence turned up after he was detained.But in a 14-page screed, Justice Thomas L. Kilbride lambasted his colleagues for their decision Thursday morning, calling it an “incremental, sub …