syntax_data: {"ast_node_type":"other","tokens":[{"end":24,"kind":"keyword","start":0,"text":"match"}]}
source_snippet:             match data {
context_before:         DefKind::AssocTy if let Some(data) = tcx.opt_rpitit_info(def_id.to_def_id()) => {
context_after:                 ty::ImplTraitInTraitData::Trait { fn_def_id, .. } => {