{"ast_node_type":"variable","tokens":[{"end":95,"kind":"keyword","start":0,"text":"let"}]}
            let data = if src_ty == dst_ty { data } else { codegen_bitcast(fx, dst_ty, data) };
            );
            //fx.bcx.set_val_label(data, cranelift_codegen::ir::ValueLabel::new(var.index()));