Properly set function index in CallSite constructor

test/mjsunit/regress/regress-crbug-570651.js

Index: test/mjsunit/regress/regress-crbug-570651.js
diff --git a/test/mjsunit/regress/regress-crbug-570651.js b/test/mjsunit/regress/regress-crbug-570651.js
deleted file mode 100644
index 9860b428b137e104de74ac3b94f7b46bc9a8f42b..0000000000000000000000000000000000000000
--- a/test/mjsunit/regress/regress-crbug-570651.js
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright 2015 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-Error.prepareStackTrace = (e,s) => s;
-var __v_3 = Error().stack[0].constructor;
-var __v_4 = {};
-function __f_3() {}
-var __v_5 = __v_3.call(null, __v_4, __f_3, {valueOf() { return 1611877293 }});
- __v_5.getColumnNumber();