A divided federal appeals court upheld a law limiting the number of out-of-state residents who may obtain a license to carry a concealed firearm in Illinois.Splitting 2-1, the 7th U.S. Circuit Court of Appeals last week rejected arguments that the restrictions on nonresidents contained in Illinois’ Firearm Concealed Carry Act violate the Second Amendment and the privileges and immunities clause of Article IV of the U.S. Constitution.The act allows out-of-state residents to get concealed carry licenses only if they …