syntax_data: {"ast_node_type":"other","tokens":[{"end":73,"kind":"keyword","start":0,"text":")"}]}
source_snippet:     ) -> Answer<<C as QueryContext>::Region, <C as QueryContext>::Type> {
context_before:         dst_state: dfa::State,
context_after:         if let Some(answer) = cache.get(&(src_state, dst_state)) {