{"ast_node_type":"variable","tokens":[{"end":48,"kind":"keyword","start":0,"text":"let"}]}
                let val2 = fx.bcx.use_var(var2);
                //fx.bcx.set_val_label(val1, cranelift_codegen::ir::ValueLabel::new(var1.index()));
                //fx.bcx.set_val_label(val2, cranelift_codegen::ir::ValueLabel::new(var2.index()));