syntax_data: {"ast_node_type":"other","tokens":[{"end":41,"kind":"keyword","start":0,"text":"ty::FnPtr(sig_tys,"}]}
source_snippet:             ty::FnPtr(sig_tys, _hdr) => {
context_before:             ty::Tuple(ts) => stack.extend(ts.iter().rev().map(|ty| ty.into())),
context_after:                 stack.extend(