{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"debug_assert!(!self.infcx.is_some_and(|infcx|"}]}
        debug_assert!(!self.infcx.is_some_and(|infcx| ty_var != infcx.shallow_resolve(ty_var)));
    ) -> Ty<'tcx> {
        let var = self.canonical_var(var_kind, ty_var.into());