{"ast_node_type":"other","tokens":[{"end":98,"kind":"keyword","start":0,"text":"if"}]}
        if cfg!(debug_assertions) && matches!(defining_scope_kind, DefiningScopeKind::HirTypeck) {
        let result = this.fold_with(&mut opaque_types::ReverseMapper::new(tcx, map, self.span));
            assert_eq!(result.ty, tcx.erase_regions(result.ty));