syntax_data: {"ast_node_type":"other","tokens":[{"end":93,"kind":"keyword","start":0,"text":"ty::ConstKind::Bound(debruijn,"}]}
source_snippet:             ty::ConstKind::Bound(debruijn, bound_const) if debruijn == self.binder_index => {
context_before:         match c.kind() {
context_after:                 let idx = bound_const.var().as_usize();