syntax_data: {"ast_node_type":"other","tokens":[{"end":38,"kind":"keyword","start":0,"text":"ty::FnPtr(sig_tys,"}]}
source_snippet:             ty::FnPtr(sig_tys, _) => {
context_after:                 sig_tys.skip_binder().inputs_and_output.iter().all(|ty| ty.is_trivially_wf(tcx))