{"ast_node_type":"other","tokens":[{"end":42,"kind":"keyword","start":0,"text":"//"}]}
                // ignore the unit type ()
            match ast::Expr::cast(parent).and_then(|site| sema.type_of_expr(&site)) {
                Some(ty) if !ty.adjusted.as_ref().unwrap_or(&ty.original).is_unit() => {