Ensure arrow functions can close over lexically-scoped variables

test/mjsunit/regress/regress-crbug-580934.js

Index: test/mjsunit/regress/regress-crbug-580934.js
diff --git a/test/mjsunit/regress/regress-572589.js b/test/mjsunit/regress/regress-crbug-580934.js
similarity index 51%
copy from test/mjsunit/regress/regress-572589.js
copy to test/mjsunit/regress/regress-crbug-580934.js
index 36092a2bf4ea72e0a91502c68276dcf06942696b..02cbfca79649874628439f342de26b3cf9ccb59b 100644
--- a/test/mjsunit/regress/regress-572589.js
+++ b/test/mjsunit/regress/regress-crbug-580934.js
@@ -2,11 +2,17 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
-// Flags: --allow-natives-syntax --no-lazy
-// Flags: --harmony-destructuring-bind
+// Flags: --min-preparse-length=0
 
 "use strict";
-eval();
-var f = ({x}) => { };
-%OptimizeFunctionOnNextCall(f);
-assertThrows(f);
+{
+  let one = () => {
+    return "example.com";
+  };
+
+  let two = () => {
+    return one();
+  };
+
+  assertEquals("example.com", two());
+}