{"ast_node_type":"other","tokens":[{"end":79,"kind":"keyword","start":0,"text":"///"}]}
/// we don't know yet whether it suffices to show that `'b: 'c`. If `'?x` winds
/// If we have an obligation like `<T as SomeTrait<'?x>>::Item: 'c`, then
/// up being equal to `'a`, then the where-clauses on function applies, and