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// Regression test for computing elements keys of arguments object.  Should
// not crash or assert.
function test(x) {
  arguments[10] = 0;
  var arr = [];
  for (var p in arguments) arr.push(p);
  return arr;
}
assertEquals(["0", "10"], test(0));

// Regression test for lookup after delete of a dictionary-mode arguments
// backing store.  Should not crash or assert.
function test1(x, y, z) {
  // Put into dictionary mode.
  arguments.__defineGetter__("5", function () { return 0; });
  // Delete a property from the dictionary.
  delete arguments[5];
  // Look up a property in the dictionary.
  return arguments[2];
}

assertEquals(void 0, test1(0));