// severe performance implications for large opaque types with
// late-bound regions. See `issue-88862` benchmark.
ty::Opaque(def_id, substs) if !substs.has_escaping_bound_vars() => {
- // Only normalize `impl Trait` after type-checking, usually in codegen.
+ // Only normalize `impl Trait` outside of type inference, usually in codegen.
match self.param_env.reveal() {
Reveal::UserFacing => ty.super_fold_with(self),