syntax_data: {"ast_node_type":"other","tokens":[{"end":47,"kind":"keyword","start":0,"text":"assert_eq!(unit.size,"}]}
source_snippet:         assert_eq!(unit.size, arg.layout.size);
context_before:         let unit = arg.layout.homogeneous_aggregate(cx).unwrap().unit().unwrap();
context_after:         if matches!(unit.kind, RegKind::Float | RegKind::Vector) {