{"ast_node_type":"other","tokens":[{"end":90,"kind":"keyword","start":0,"text":"self.infcx.tcx.sess.source_map().span_to_snippet(source_info.span)"}]}
                        self.infcx.tcx.sess.source_map().span_to_snippet(source_info.span)
                    if let Ok(snippet) =
                    {