syntax_data: {"ast_node_type":"other","tokens":[{"end":70,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                 if sig.safety().is_unsafe() && !safe_target_features {
context_before:                 };
context_after:                     let func_id = if let ty::FnDef(func_id, _) = fn_ty.kind() {