use crate::def_id::DefId;
use crate::Target;
+use rustc_ast::ast;
use rustc_data_structures::fx::FxHashMap;
use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
use rustc_macros::HashStable_Generic;
use rustc_span::symbol::{sym, Symbol};
use rustc_span::Span;
-use syntax::ast;
use lazy_static::lazy_static;