syntax_data: {"ast_node_type":"other","tokens":[{"end":83,"kind":"keyword","start":0,"text":"if"}]}
source_snippet:                 if args == a_args { a } else { Ty::new_fn_def(cx, a_def_id, args) }
context_before:                 let args = relation.relate_item_args(a_def_id, a_args, b_args)?;
context_after:             })