syntax_data: {"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"ty::FnPtr(..)"}]}
source_snippet:                         ty::FnPtr(..) => None,
context_before:                     let fn_def_id = match ty.kind() {
context_after:                         &ty::FnDef(def_id, _) => Some(def_id),