{"ast_node_type":"other","tokens":[{"end":62,"kind":"keyword","start":0,"text":"impl<'tcx>"}]}
impl<'tcx> LateLintPass<'tcx> for ImproperCTypesDeclarations {
    fn check_foreign_item(&mut self, cx: &LateContext<'tcx>, it: &hir::ForeignItem<'tcx>) {