Strict mode object literal validation

test/mjsunit/strict-mode.js

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 97 matching lines @@
 //  "use strict";\
 //}', SyntaxError);
 
 // Strict mode doesn't affect the outer stop of strict code.
 function NotStrict(eval) {
   function Strict() {
     "use strict";
   }
   with ({}) {};
 }
+
+// Duplicate data properties.
+CheckStrictMode("var x = { dupe : 1, nondupe: 3, dupe : 2 };", SyntaxError)
+
+// Two getters (non-strict)
+assertThrows("var x = { get foo() { }, get foo() { } };", SyntaxError)
+
+// Two setters (non-strict)
+assertThrows("var x = { set foo(v) { }, set foo(v) { } };", SyntaxError)
+
+// Setter and data (non-strict)
+assertThrows("var x = { foo: 'data', set foo(v) { } };", SyntaxError)
+assertThrows("var x = { set foo(v) { }, foo: 'data' };", SyntaxError)
+
+// Getter and data (non-strict)
+assertThrows("var x = { foo: 'data', get foo() { } };", SyntaxError)
+assertThrows("var x = { get foo() { }, foo: 'data' };", SyntaxError)
+