Update: Renee Smith and Michael Brock were added to the fourth from last paragraph as part of the attorney group who represented General Motors.A federal judge’s ruling late last month in the multidistrict litigation against General Motors dismissed two test cases involving plaintiffs who alleged a defective ignition switch caused crashes when the cars’ airbags deployed.U.S. District Judge Jesse M. Furman’s order is considered a win for GM. GM was represented by Chicago attorneys at Kirkland & Ellis …