syntax_data: {"ast_node_type":"other","tokens":[{"end":75,"kind":"keyword","start":0,"text":"own_existential_vtable_entries_iter(tcx,"}]}
source_snippet:     own_existential_vtable_entries_iter(tcx, trait_def_id).next().is_some()
context_before: fn has_own_existential_vtable_entries(tcx: TyCtxt<'_>, trait_def_id: DefId) -> bool {
context_after: }