{"ast_node_type":"variable","tokens":[{"end":84,"kind":"keyword","start":0,"text":"let"}]}
        let mut autoderef = self.autoderef(self.call_expr.span, unadjusted_self_ty);
        // time writing the results into the various typeck results.
        let Some((ty, n)) = autoderef.nth(pick.autoderefs) else {