syntax_data: {"ast_node_type":"other","tokens":[{"end":21,"kind":"keyword","start":0,"text":"}"}]}
source_snippet:                     }
context_before:                         (def_id, UpvarArgs::Coroutine(args), Some(tcx.coroutine_movability(def_id)))
context_after:                     ty::CoroutineClosure(def_id, args) => {