test/mjsunit/arguments-escape.js

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function foo(x) {
  var a = arguments;
  function bar(i) {
    assertEquals(i, ++a[0]);
    assertEquals(i, x);
  };
  bar(1);
  bar(2);
  bar(3);
  return bar;
}
var baz = foo(0);
baz(4);
baz(5);
baz(6);

// Test writing a non-smi.
function foo2(x) {
  var a = arguments;
  function bar2(i) {
    assertEquals(i, ++a[0]);
    assertEquals(i, x);
  };
  bar2(1.5);
  bar2(2.5);
  bar2(3.5);
  return bar2;
}
var baz2 = foo2(0.5);
baz2(4.5);
baz2(5.5);
baz2(6.5);