syntax_data: {"ast_node_type":"other","tokens":[{"end":84,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:         if visitor.found_recursion { Err(expanded_type) } else { Ok(expanded_type) }
context_before:         let expanded_type = visitor.expand_opaque_ty(def_id, args).unwrap();
context_after:     }