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diff --git a/js/src/tests/js1_5/Regress/regress-152646.js b/js/src/tests/js1_5/Regress/regress-152646.js
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+/* -*- indent-tabs-mode: nil; js-indent-level: 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: 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 BUGNUMBER = 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;
+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(BUGNUMBER);
+ printStatus(summary);
+
+ for (var i=0; i<UBound; i++)
+ {
+ reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+ }
+
+ exitFunc ('test');
+}