syntax_data: {"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"//"}]}
source_snippet:                                 // We only allow a `ty::INNERMOST` index in generic parameters.
context_before:                             ty::ConstKind::Bound(debruijn, b) => {
context_after:                                 assert_eq!(debruijn, ty::INNERMOST);