syntax_data: {"ast_node_type":"other","tokens":[{"end":76,"kind":"keyword","start":0,"text":"ty::ReBound(debruijn,"}]}
source_snippet:             ty::ReBound(debruijn, br) if debruijn >= self.current_index => {
context_before:         match r.kind() {
context_after:                 let debruijn = debruijn.shifted_in(self.amount);