syntax_data: {"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"adt_def.discriminants(self.tcx).filter_map(|(idx,"}]}
source_snippet:                     adt_def.discriminants(self.tcx).filter_map(|(idx, discr)| {
context_before:                 let switch_targets = SwitchTargets::new(
context_after:                         if let Some(&block) = target_blocks.get(&TestBranch::Variant(idx)) {