use crate::util::nodemap::NodeMap;
use rustc_data_structures::fx::FxHashMap;
-use rustc_data_structures::indexed_vec::{IndexVec};
+use rustc_index::vec::{IndexVec};
use rustc_data_structures::stable_hasher::StableHasher;
use std::borrow::Borrow;
use std::fmt::Write;