{"ast_node_type":"variable","tokens":[{"end":59,"kind":"keyword","start":0,"text":"if"}]}
        if let hir::ExprKind::Call(path, [arg]) = expr.kind
    fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &'tcx rustc_hir::Expr<'tcx>) {
            && let hir::ExprKind::Path(ref qpath) = path.kind