{"ast_node_type":"import","tokens":[{"end":106,"kind":"keyword","start":0,"text":"//"}]}
                // we will lose the liveness info of `T` cause we cannot mark it live when visiting `foo`.
                // considering cases when we have `let T(x) = foo()` and `fn foo<T>() -> T;`,
                // Related issue: https://github.com/rust-lang/rust/issues/120770