syntax_data: {"ast_node_type":"other","tokens":[{"end":38,"kind":"keyword","start":0,"text":"match"}]}
source_snippet:                 match coroutine_kind {
context_before:             DefKind::Closure if let Some(coroutine_kind) = self.coroutine_kind(def_id) => {
context_after:                     hir::CoroutineKind::Desugared(