diff -r 000000000000 -r 6474c204b198 js/src/tests/js1_5/Regress/regress-159334.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/js1_5/Regress/regress-159334.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,95 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ *
+ * Date:    31 Oct 2002
+ * SUMMARY: Testing script with at least 64K of different string literals
+ * See http://bugzilla.mozilla.org/show_bug.cgi?id=159334
+ *
+ * Testing that script engine can handle scripts with at least 64K of different
+ * string literals. The following will evaluate, via eval(), a script like this:
+ *
+ *     f('0')
+ *     f('1')
+ *     ...
+ *     f('N - 1')
+ *
+ * where N is 0xFFFE
+ *
+ */
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var BUGNUMBER = 159334;
+var summary = 'Testing script with at least 64K of different string literals';
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+
+
+var N = 0xFFFE;
+
+// Create big string for eval recursively to avoid N*N behavior
+// on string concatenation
+var long_eval = buildEval_r(0, N);
+
+// Run it
+var test_sum = 0;
+function f(str) { test_sum += Number(str); }
+eval(long_eval);
+
+status = inSection(1);
+actual = (test_sum == N * (N - 1) / 2);
+expect = true;
+addThis();
+
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+
+
+function buildEval_r(beginLine, endLine)
+{
+  var count = endLine - beginLine;
+
+  if (count == 0)
+    return "";
+
+  if (count == 1)
+    return "f('" + beginLine + "')\n";
+
+  var middle = beginLine + (count >>> 1);
+  return buildEval_r(beginLine, middle) + buildEval_r(middle, endLine);
+}
+
+
+function addThis()
+{
+  statusitems[UBound] = status;
+  actualvalues[UBound] = actual;
+  expectedvalues[UBound] = expect;
+  UBound++;
+}
+
+
+function test()
+{
+  enterFunc('test');
+  printBugNumber(BUGNUMBER);
+  printStatus(summary);
+
+  for (var i=0; i<UBound; i++)
+  {
+    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+  }
+
+  exitFunc ('test');
+}