syntax_data: {"ast_node_type":"other","tokens":[{"end":13,"kind":"keyword","start":0,"text":"{"}]}
source_snippet:             {
context_before:             } else if let Some(target_kind) = tcx.async_fn_trait_kind_from_def_id(trait_ref.def_id)
context_after:                 match *rcvr_args.type_at(0).kind() {