{"ast_node_type":"variable","tokens":[{"end":100,"kind":"keyword","start":0,"text":"if"}]}
                if let Some(span) = get_mut_span_in_struct_field(self.infcx.tcx, place.ty, *field) {
                let place = Place::ty_from(local, proj_base, self.body, self.infcx.tcx);
                    err.span_suggestion_verbose(