diff --git a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5-4-4-a-1-s.js b/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5-4-4-a-1-s.js
deleted file mode 100644
--- a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5-4-4-a-1-s.js
+++ /dev/null
@@ -1,31 +0,0 @@
-/// Copyright (c) 2012 Ecma International.  All rights reserved. 
-/// Ecma International makes this code available under the terms and conditions set
-/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
-/// "Use Terms").   Any redistribution of this code must retain the above 
-/// copyright and this notice and otherwise comply with the Use Terms.
-/**
- * Refer 11.1.5; 
- *   The production
- *      PropertyNameAndValueList :  PropertyNameAndValueList , PropertyAssignment
- *    4. If previous is not undefined then throw a SyntaxError exception if any of the following conditions are true
- *      a. This production is contained in strict code and IsDataDescriptor(previous) is true and IsDataDescriptor(propId.descriptor) is true
- *
- * @path ch11/11.1/11.1.5/11.1.5-4-4-a-1-s.js
- * @description Object literal - SyntaxError for duplicate date property name in strict mode
- * @onlyStrict
- */
-
-
-function testcase() {
-  
-  try
-  {
-    eval("'use strict'; ({foo:0,foo:1});");
-    return false;
-  }
-  catch(e)
-  {
-    return (e instanceof SyntaxError);
-  }
- }
-runTestCase(testcase);
diff --git a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-b-1.js b/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-b-1.js
deleted file mode 100644
--- a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-b-1.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/// Copyright (c) 2012 Ecma International.  All rights reserved. 
-/// Ecma International makes this code available under the terms and conditions set
-/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
-/// "Use Terms").   Any redistribution of this code must retain the above 
-/// copyright and this notice and otherwise comply with the Use Terms.
-/**
- * Refer 11.1.5; 
- *   The production
- *      PropertyNameAndValueList :  PropertyNameAndValueList , PropertyAssignment
- *    4. If previous is not undefined then throw a SyntaxError exception if any of the following conditions are true
- *      b.IsDataDescriptor(previous) is true and IsAccessorDescriptor(propId.descriptor) is true.
- *
- * @path ch11/11.1/11.1.5/11.1.5_4-4-b-1.js
- * @description Object literal - SyntaxError if a data property definition is followed by get accessor definition with the same name
- */
-
-
-function testcase() {
-  try
-  {
-    eval("({foo : 1, get foo(){}});");
-    return false;
-  }
-  catch(e)
-  {
-    return e instanceof SyntaxError;
-  }
- }
-runTestCase(testcase);
diff --git a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-b-2.js b/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-b-2.js
deleted file mode 100644
--- a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-b-2.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/// Copyright (c) 2012 Ecma International.  All rights reserved. 
-/// Ecma International makes this code available under the terms and conditions set
-/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
-/// "Use Terms").   Any redistribution of this code must retain the above 
-/// copyright and this notice and otherwise comply with the Use Terms.
-/**
- * Refer 11.1.5; 
- *   The production
- *      PropertyNameAndValueList :  PropertyNameAndValueList , PropertyAssignment
- *    4. If previous is not undefined then throw a SyntaxError exception if any of the following conditions are true
- *      b.IsDataDescriptor(previous) is true and IsAccessorDescriptor(propId.descriptor) is true.
- *
- * @path ch11/11.1/11.1.5/11.1.5_4-4-b-2.js
- * @description Object literal - SyntaxError if a data property definition is followed by set accessor definition with the same name
- */
-
-
-function testcase() {
-  try
-  {
-    eval("({foo : 1, set foo(x){}});");
-    return false;
-  }
-  catch(e)
-  {
-    return e instanceof SyntaxError;
-  }
- }
-runTestCase(testcase);
diff --git a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-c-1.js b/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-c-1.js
deleted file mode 100644
--- a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-c-1.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/// Copyright (c) 2012 Ecma International.  All rights reserved. 
-/// Ecma International makes this code available under the terms and conditions set
-/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
-/// "Use Terms").   Any redistribution of this code must retain the above 
-/// copyright and this notice and otherwise comply with the Use Terms.
-/**
- * Refer 11.1.5; 
- *   The production
- *      PropertyNameAndValueList :  PropertyNameAndValueList , PropertyAssignment
- *    4. If previous is not undefined then throw a SyntaxError exception if any of the following conditions are true
- *      c.IsAccessorDescriptor(previous) is true and IsDataDescriptor(propId.descriptor) is true.
- *
- * @path ch11/11.1/11.1.5/11.1.5_4-4-c-1.js
- * @description Object literal - SyntaxError if a get accessor property definition is followed by a data property definition with the same name
- */
-
-
-function testcase() {
-  try
-  {
-    eval("({get foo(){}, foo : 1});");
-    return false;
-  }
-  catch(e)
-  {
-    return e instanceof SyntaxError;
-  }
- }
-runTestCase(testcase);
diff --git a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-c-2.js b/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-c-2.js
deleted file mode 100644
--- a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-c-2.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/// Copyright (c) 2012 Ecma International.  All rights reserved. 
-/// Ecma International makes this code available under the terms and conditions set
-/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
-/// "Use Terms").   Any redistribution of this code must retain the above 
-/// copyright and this notice and otherwise comply with the Use Terms.
-/**
- * Refer 11.1.5; 
- *   The production
- *      PropertyNameAndValueList :  PropertyNameAndValueList , PropertyAssignment
- *    4. If previous is not undefined then throw a SyntaxError exception if any of the following conditions are true
- *      c.IsAccessorDescriptor(previous) is true and IsDataDescriptor(propId.descriptor) is true.
- *
- * @path ch11/11.1/11.1.5/11.1.5_4-4-c-2.js
- * @description Object literal - SyntaxError if a set accessor property definition is followed by a data property definition with the same name
- */
-
-
-function testcase() {
-  try
-  {
-    eval("({set foo(x){}, foo : 1});");
-    return false;
-  }
-  catch(e)
-  {
-    return e instanceof SyntaxError;
-  }
- }
-runTestCase(testcase);
diff --git a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-d-1.js b/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-d-1.js
deleted file mode 100644
--- a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-d-1.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/// Copyright (c) 2012 Ecma International.  All rights reserved. 
-/// Ecma International makes this code available under the terms and conditions set
-/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
-/// "Use Terms").   Any redistribution of this code must retain the above 
-/// copyright and this notice and otherwise comply with the Use Terms.
-/**
- * Refer 11.1.5; 
- *   The production
- *     PropertyNameAndValueList :  PropertyNameAndValueList , PropertyAssignment
- *   4. If previous is not undefined then throw a SyntaxError exception if any of the following conditions are true
- *     d.	IsAccessorDescriptor(previous) is true and IsAccessorDescriptor(propId.descriptor) is true and either both previous and propId.descriptor have [[Get]] fields or both previous and propId.descriptor have [[Set]] fields
- *
- * @path ch11/11.1/11.1.5/11.1.5_4-4-d-1.js
- * @description Object literal - SyntaxError for duplicate property name (get,get)
- */
-
-
-function testcase() {
-  try
-  {
-    eval("({get foo(){}, get foo(){}});");
-    return false;
-  }
-  catch(e)
-  {
-    return e instanceof SyntaxError;
-  }
- }
-runTestCase(testcase);
diff --git a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-d-2.js b/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-d-2.js
deleted file mode 100644
--- a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-d-2.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/// Copyright (c) 2012 Ecma International.  All rights reserved. 
-/// Ecma International makes this code available under the terms and conditions set
-/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
-/// "Use Terms").   Any redistribution of this code must retain the above 
-/// copyright and this notice and otherwise comply with the Use Terms.
-/**
- * Refer 11.1.5; 
- *   The production
- *     PropertyNameAndValueList :  PropertyNameAndValueList , PropertyAssignment
- *   4. If previous is not undefined then throw a SyntaxError exception if any of the following conditions are true
- *     d.	IsAccessorDescriptor(previous) is true and IsAccessorDescriptor(propId.descriptor) is true and either both previous and propId.descriptor have [[Get]] fields or both previous and propId.descriptor have [[Set]] fields
- *
- * @path ch11/11.1/11.1.5/11.1.5_4-4-d-2.js
- * @description Object literal - SyntaxError for duplicate property name (set,set)
- */
-
-
-function testcase() {
-  try
-  {
-    eval("({set foo(arg){}, set foo(arg1){}});");
-    return false;
-  }
-  catch(e)
-  {
-    return e instanceof SyntaxError;
-  }
- }
-runTestCase(testcase);
diff --git a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-d-3.js b/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-d-3.js
deleted file mode 100644
--- a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-d-3.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/// Copyright (c) 2012 Ecma International.  All rights reserved. 
-/// Ecma International makes this code available under the terms and conditions set
-/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
-/// "Use Terms").   Any redistribution of this code must retain the above 
-/// copyright and this notice and otherwise comply with the Use Terms.
-/**
- * Refer 11.1.5; 
- *   The production
- *     PropertyNameAndValueList :  PropertyNameAndValueList , PropertyAssignment
- *   4. If previous is not undefined then throw a SyntaxError exception if any of the following conditions are true
- *     d.	IsAccessorDescriptor(previous) is true and IsAccessorDescriptor(propId.descriptor) is true and either both previous and propId.descriptor have [[Get]] fields or both previous and propId.descriptor have [[Set]] fields
- *
- * @path ch11/11.1/11.1.5/11.1.5_4-4-d-3.js
- * @description Object literal - SyntaxError for duplicate property name (get,set,get)
- */
-
-
-function testcase() {
-  try
-  {
-    eval("({get foo(){}, set foo(arg){}, get foo(){}});");
-    return false;
-  }
-  catch(e)
-  {
-    return e instanceof SyntaxError;
-  }
- }
-runTestCase(testcase);
diff --git a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-d-4.js b/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-d-4.js
deleted file mode 100644
--- a/js/src/tests/test262/ch11/11.1/11.1.5/11.1.5_4-4-d-4.js
+++ /dev/null
@@ -1,29 +0,0 @@
-/// Copyright (c) 2012 Ecma International.  All rights reserved. 
-/// Ecma International makes this code available under the terms and conditions set
-/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the 
-/// "Use Terms").   Any redistribution of this code must retain the above 
-/// copyright and this notice and otherwise comply with the Use Terms.
-/**
- * Refer 11.1.5; 
- *   The production
- *     PropertyNameAndValueList :  PropertyNameAndValueList , PropertyAssignment
- *   4. If previous is not undefined then throw a SyntaxError exception if any of the following conditions are true
- *     d.	IsAccessorDescriptor(previous) is true and IsAccessorDescriptor(propId.descriptor) is true and either both previous and propId.descriptor have [[Get]] fields or both previous and propId.descriptor have [[Set]] fields
- *
- * @path ch11/11.1/11.1.5/11.1.5_4-4-d-4.js
- * @description Object literal - SyntaxError for duplicate property name (set,get,set)
- */
-
-
-function testcase() {
-  try
-  {
-    eval("({set foo(arg){}, get foo(){}, set foo(arg1){}});");
-    return false;
-  }
-  catch(e)
-  {
-    return e instanceof SyntaxError;
-  }
- }
-runTestCase(testcase);