syntax_data: {"ast_node_type":"other","tokens":[{"end":88,"kind":"keyword","start":0,"text":"tcx.liberate_late_bound_regions(def_id.to_def_id(),"}]}
source_snippet:                 tcx.liberate_late_bound_regions(def_id.to_def_id(), sig.input(0)).kind()
context_before:             if let ty::Ref(_, dropped_ty, _) =
context_after:             {