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diff --git a/Source/JavaScriptCore/tests/mozilla/js1_5/Regress/regress-152646.js b/Source/JavaScriptCore/tests/mozilla/js1_5/Regress/regress-152646.js
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@@ -0,0 +1,121 @@
+/* ***** BEGIN LICENSE BLOCK *****
+* Version: NPL 1.1/GPL 2.0/LGPL 2.1
+*
+* The contents of this file are subject to the Netscape Public License
+* Version 1.1 (the "License"); you may not use this file except in
+* compliance with the License. You may obtain a copy of the License at
+* http://www.mozilla.org/NPL/
+*
+* Software distributed under the License is distributed on an "AS IS" basis,
+* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+* for the specific language governing rights and limitations under the
+* License.
+*
+* The Original Code is JavaScript Engine testing utilities.
+*
+* The Initial Developer of the Original Code is Netscape Communications Corp.
+* Portions created by the Initial Developer are Copyright (C) 2002
+* the Initial Developer. All Rights Reserved.
+*
+* Contributor(s): pschwartau@netscape.com, mstoltz@netscape.com
+*
+* Alternatively, the contents of this file may be used under the terms of
+* either the GNU General Public License Version 2 or later (the "GPL"), or
+* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+* in which case the provisions of the GPL or the LGPL are applicable instead
+* of those above. If you wish to allow use of your version of this file only
+* under the terms of either the GPL or the LGPL, and not to allow others to
+* use your version of this file under the terms of the NPL, indicate your
+* decision by deleting the provisions above and replace them with the notice
+* and other provisions required by the GPL or the LGPL. If you do not delete
+* the provisions above, a recipient may use your version of this file under
+* the terms of any one of the NPL, the GPL or the LGPL.
+*
+* ***** END LICENSE BLOCK *****
+*
+*
+* Date:    08 July 2002
+* SUMMARY: Testing expressions with large numbers of parentheses
+* See http://bugzilla.mozilla.org/show_bug.cgi?id=152646
+*
+*/
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var bug = 152646;
+var summary = 'Testing expressions with large numbers of parentheses';
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+
+
+/*
+ * Just seeing that we don't crash when compiling this assignment -
+ *
+ * We will form an eval string to set the result-variable |actual|.
+ * To get a feel for this, suppose N were 3. Then the eval string is
+ * 'actual = (((0)));' The expected value for this after eval() is 0.
+ */
+status = inSection(1);
+
+var sLeft = '((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((';
+sLeft += sLeft;
+sLeft += sLeft;
+sLeft += sLeft;
+sLeft += sLeft;
+sLeft += sLeft;
+
+var sRight = '))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))))';
+sRight += sRight;
+sRight += sRight;
+sRight += sRight;
+sRight += sRight;
+
+var sEval = 'actual = ' + sLeft + '0' + sRight;
+try
+{
+  eval(sEval);
+}
+catch(e)
+{
+  /*
+   * An exception during this eval is OK, as the runtime can throw one
+   * in response to too deep recursion. We haven't crashed; good!
+   */
+  actual = 0;
+}
+expect = 0;
+addThis();
+
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+
+
+function addThis()
+{
+  statusitems[UBound] = status;
+  actualvalues[UBound] = actual;
+  expectedvalues[UBound] = expect;
+  UBound++;
+}
+
+
+function test()
+{
+  enterFunc('test');
+  printBugNumber(bug);
+  printStatus(summary);
+
+  for (var i=0; i<UBound; i++)
+  {
+    reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+  }
+
+  exitFunc ('test');
+}