Update: An additional comment from Howard A. Janet was added to the fourth from last paragraph.SPRINGFIELD — A divided state high court declined to expand liability on health-care providers.The Illinois Supreme Court ruled a long-standing precedent that says hospitals can be sued for the actions of certain nonemployees shouldn’t apply to workers at separate, unrelated clinics.In a 4-3 decision, the majority acknowledged rules set forth in a 1993 opinion that say if hospitals give the impression their own …