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diff --git a/js/src/tests/non262/RegExp/regexp-enumerate-001.js b/js/src/tests/non262/RegExp/regexp-enumerate-001.js
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+/* -*- tab-width: 2; 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/. */
+
+
+/**
+   File Name:          regexp-enumerate-001.js
+   ECMA V2 Section:
+   Description:        Regression Test.
+
+   If instance Native Object have properties that are enumerable,
+   JavaScript enumerated through the properties twice. This only
+   happened if objects had been instantiated, but their properties
+   had not been enumerated.  ie, the object inherited properties
+   from its prototype that are enumerated.
+
+   In the core JavaScript, this is only a problem with RegExp
+   objects, since the inherited properties of most core JavaScript
+   objects are not enumerated.
+
+   Author:             christine@netscape.com, pschwartau@netscape.com
+   Date:               12 November 1997
+   Modified:           14 July 2002
+   Reason:             See http://bugzilla.mozilla.org/show_bug.cgi?id=155291
+   ECMA-262 Ed.3  Sections 15.10.7.1 through 15.10.7.5
+   RegExp properties should be DontEnum
+   *
+   */
+//    onerror = err;
+
+var SECTION = "regexp-enumerate-001";
+var TITLE   = "Regression Test for Enumerating Properties";
+
+var BUGNUMBER="339403";
+
+printBugNumber(BUGNUMBER);
+writeHeaderToLog( SECTION + " "+ TITLE);
+
+/*
+ *  This test expects RegExp instances to have four enumerated properties:
+ *  source, global, ignoreCase, and lastIndex
+ *
+ *  99.01.25:  now they also have a multiLine instance property.
+ *
+ */
+
+
+var r = new RegExp();
+
+var e = new Array();
+
+var t = new TestRegExp();
+
+for ( p in r ) { e[e.length] = { property:p, value:r[p] }; t.addProperty( p, r[p]) };
+
+new TestCase( "r = new RegExp(); e = new Array(); "+
+	      "for ( p in r ) { e[e.length] = { property:p, value:r[p] }; e.length",
+	      0,
+	      e.length );
+
+test();
+
+function TestRegExp() {
+  this.addProperty = addProperty;
+}
+function addProperty(name, value) {
+  var pass = false;
+
+  if ( eval("this."+name) != void 0 ) {
+    pass = true;
+  } else {
+    eval( "this."+ name+" = "+ false );
+  }
+
+  new TestCase( "Property: " + name +" already enumerated?",
+		false,
+		pass );
+}