diff -r 000000000000 -r 6474c204b198 js/src/tests/ecma/ExecutionContexts/10.1.3-1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/ecma/ExecutionContexts/10.1.3-1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,73 @@
+/* -*- 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/. */
+
+
+/**
+   File Name:          10.1.3-1.js
+   ECMA Section:       10.1.3
+   Description:
+
+   For each formal parameter, as defined in the FormalParameterList, create
+   a property of the variable object whose name is the Identifier and whose
+   attributes are determined by the type of code. The values of the
+   parameters are supplied by the caller. If the caller supplies fewer
+   parameter values than there are formal parameters, the extra formal
+   parameters have value undefined. If two or more formal parameters share
+   the same name, hence the same property, the corresponding property is
+   given the value that was supplied for the last parameter with this name.
+   If the value of this last parameter was not supplied by the caller,
+   the value of the corresponding property is undefined.
+
+
+   http://scopus.mcom.com/bugsplat/show_bug.cgi?id=104191
+
+   Author:             christine@netscape.com
+   Date:               12 november 1997
+*/
+
+var SECTION = "10.1.3-1";
+var VERSION = "ECMA_1";
+var TITLE   = "Variable Instantiation:  Formal Parameters";
+var BUGNUMBER="104191";
+startTest();
+
+writeHeaderToLog( SECTION + " "+ TITLE);
+
+var myfun1 = new Function( "a", "a", "return a" );
+var myfun2 = new Function( "a", "b", "a", "return a" );
+
+function myfun3(a, b, a) {
+  return a;
+}
+
+// myfun1, myfun2, myfun3 tostring
+
+
+new TestCase(
+  SECTION,
+  String(myfun2) +"; myfun2(2,4,8)",
+  8,
+  myfun2(2,4,8) );
+
+new TestCase(
+  SECTION,
+  "myfun2(2,4)",
+  void 0,
+  myfun2(2,4));
+
+new TestCase(
+  SECTION,
+  String(myfun3) +"; myfun3(2,4,8)",
+  8,
+  myfun3(2,4,8) );
+
+new TestCase(
+  SECTION,
+  "myfun3(2,4)",
+  void 0,
+  myfun3(2,4) );
+
+test();
+