test/mjsunit/bugs/bug-222.js

// Copyright 2008 the V8 project authors. All rights reserved.
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function Foo(a, b) { }
Foo();
var oldArgs = Foo.arguments;
Foo();
var newArgs = Foo.arguments

assertTrue(oldArgs !== newArgs);

// Don't allow arguments to be overwritten.
Foo.arguments = oldArgs;
assertEquals(Foo.arguments, newArgs);

// Don't allow arguments to be deleted.
assertFalse(delete Foo.arguments);
assertEquals(Foo.arguments, newArgs);