syntax_data: {"ast_node_type":"variable","tokens":[{"end":62,"kind":"keyword","start":0,"text":"let"}]}
source_snippet:         let has_float = match fn_abi.ret.layout.backend_repr {
context_before:     if !fn_abi.ret.is_ignore() {
context_after:             BackendRepr::Scalar(s) => matches!(s.primitive(), Primitive::Float(_)),