syntax_data: {"ast_node_type":"other","tokens":[{"end":77,"kind":"keyword","start":0,"text":"foreign_expn_data.sort_by_key(|(id,"}]}
source_snippet:             foreign_expn_data.sort_by_key(|(id, _)| (id.krate, id.local_id));
context_before:             let mut foreign_expn_data: Vec<_> = data.foreign_expn_data.iter().collect();
context_after:             foreign_expn_data.into_iter().for_each(debug_expn_data);