syntax_data: {"ast_node_type":"other","tokens":[{"end":49,"kind":"keyword","start":0,"text":"match"}]}
source_snippet:         match DefUse::for_place(place, context) {
context_before:     fn apply(state: &mut DenseBitSet<Local>, place: Place<'_>, context: PlaceContext) {
context_after:             Some(DefUse::Def) => state.kill(place.local),