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diff --git a/js/src/tests/non262/Exceptions/regress-181914.js b/js/src/tests/non262/Exceptions/regress-181914.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: 25 Nov 2002
+ * SUMMARY: Calling a user-defined superconstructor
+ * See http://bugzilla.mozilla.org/show_bug.cgi?id=181914, esp. Comment 10.
+ *
+ */
+//-----------------------------------------------------------------------------
+var UBound = 0;
+var BUGNUMBER = '181914';
+var summary = 'Calling a user-defined superconstructor';
+var status = '';
+var statusitems = [];
+var actual = '';
+var actualvalues = [];
+var expect= '';
+var expectedvalues = [];
+var EMPTY_STRING = '';
+var EXPECTED_FORMAT = 0;
+
+
+// make a user-defined version of the Error constructor
+function _Error(msg)
+{
+ this.message = msg;
+}
+_Error.prototype = new Error();
+_Error.prototype.name = '_Error';
+
+
+// derive MyApplyError from _Error
+function MyApplyError(msg)
+{
+ if(this instanceof MyApplyError)
+ _Error.apply(this, arguments);
+ else
+ return new MyApplyError(msg);
+}
+MyApplyError.prototype = new _Error();
+MyApplyError.prototype.name = "MyApplyError";
+
+
+// derive MyCallError from _Error
+function MyCallError(msg)
+{
+ if(this instanceof MyCallError)
+ _Error.call(this, msg);
+ else
+ return new MyCallError(msg);
+}
+MyCallError.prototype = new _Error();
+MyCallError.prototype.name = "MyCallError";
+
+
+function otherScope(msg)
+{
+ return MyApplyError(msg);
+}
+
+
+status = inSection(1);
+var err1 = new MyApplyError('msg1');
+actual = examineThis(err1, 'msg1');
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(2);
+var err2 = new MyCallError('msg2');
+actual = examineThis(err2, 'msg2');
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(3);
+var err3 = MyApplyError('msg3');
+actual = examineThis(err3, 'msg3');
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(4);
+var err4 = MyCallError('msg4');
+actual = examineThis(err4, 'msg4');
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(5);
+var err5 = otherScope('msg5');
+actual = examineThis(err5, 'msg5');
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(6);
+var err6 = otherScope();
+actual = examineThis(err6, EMPTY_STRING);
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(7);
+var err7 = eval("MyApplyError('msg7')");
+actual = examineThis(err7, 'msg7');
+expect = EXPECTED_FORMAT;
+addThis();
+
+status = inSection(8);
+var err8;
+try
+{
+ throw MyApplyError('msg8');
+}
+catch(e)
+{
+ if(e instanceof Error)
+ err8 = e;
+}
+actual = examineThis(err8, 'msg8');
+expect = EXPECTED_FORMAT;
+addThis();
+
+
+
+//-----------------------------------------------------------------------------
+test();
+//-----------------------------------------------------------------------------
+
+
+
+// Searches |err.toString()| for |err.name + ':' + err.message|
+function examineThis(err, msg)
+{
+ var pattern = err.name + '\\s*:?\\s*' + msg;
+ return err.toString().search(RegExp(pattern));
+}
+
+
+function addThis()
+{
+ statusitems[UBound] = status;
+ actualvalues[UBound] = actual;
+ expectedvalues[UBound] = expect;
+ UBound++;
+}
+
+
+function test()
+{
+ printBugNumber(BUGNUMBER);
+ printStatus (summary);
+
+ for (var i = 0; i < UBound; i++)
+ {
+ reportCompare(expectedvalues[i], actualvalues[i], statusitems[i]);
+ }
+}