syntax_data: {"ast_node_type":"variable","tokens":[{"end":66,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if let TestCase::Or { pats, .. } = &match_pair.test_case {
context_before:     fn visit_match_pair(&mut self, match_pair: &MatchPairTree<'tcx>) {
context_after:             for flat_pat in pats.iter() {