syntax_data: {"ast_node_type":"other","tokens":[{"end":94,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                     if matches!(r.kind(), ty::ReBound(ty::INNERMOST, br) if var == br.var()) {
context_before:                 ty::GenericArgKind::Lifetime(r) => {
context_after:                         var = var + 1;