Add back the duplicate property checker

test/webkit/object-literal-syntax.js

Index: test/webkit/object-literal-syntax.js
diff --git a/test/webkit/object-literal-syntax.js b/test/webkit/object-literal-syntax.js
index 40f842b40392a5960a9cc99fa89678d1012c5b35..e9cc2dd8c51cc89bd6cfa3963f0f841babd9a77b 100644
--- a/test/webkit/object-literal-syntax.js
+++ b/test/webkit/object-literal-syntax.js
@@ -23,20 +23,20 @@
 
 description("Make sure that we correctly identify parse errors in object literals");
 
-shouldBeTrue("({a:1, get a(){}}), true");
-shouldBeTrue("({a:1, set a(v){}}), true");
-shouldBeTrue("({get a(){}, a:1}), true");
-shouldBeTrue("({set a(v){}, a:1}), true");
-shouldBeTrue("({get a(){}, get a(){}}), true");
-shouldBeTrue("({set a(v){}, set a(v){}}), true");
-shouldBeTrue("({set a(v){}, get a(){}, set a(v){}}), true");
-shouldBeTrue("(function(){({a:1, get a(){}})}), true");
-shouldBeTrue("(function(){({a:1, set a(v){}})}), true");
-shouldBeTrue("(function(){({get a(){}, a:1})}), true");
-shouldBeTrue("(function(){({set a(v){}, a:1})}), true");
-shouldBeTrue("(function(){({get a(){}, get a(){}})}), true");
-shouldBeTrue("(function(){({set a(v){}, set a(v){}})}), true");
-shouldBeTrue("(function(){({set a(v){}, get a(){}, set a(v){}})}), true");
+shouldThrow("({a:1, get a(){}})");
+shouldThrow("({a:1, set a(v){}})");
+shouldThrow("({get a(){}, a:1})");
+shouldThrow("({set a(v){}, a:1})");
+shouldThrow("({get a(){}, get a(){}})");
+shouldThrow("({set a(v){}, set a(v){}})");
+shouldThrow("({set a(v){}, get a(){}, set a(v){}})");
+shouldThrow("(function(){({a:1, get a(){}})})");
+shouldThrow("(function(){({a:1, set a(v){}})})");
+shouldThrow("(function(){({get a(){}, a:1})})");
+shouldThrow("(function(){({set a(v){}, a:1})})");
+shouldThrow("(function(){({get a(){}, get a(){}})})");
+shouldThrow("(function(){({set a(v){}, set a(v){}})})");
+shouldThrow("(function(){({set a(v){}, get a(){}, set a(v){}})})");
 shouldBeTrue("({a:1, a:1, a:1}), true");
 shouldBeTrue("({get a(){}, set a(v){}}), true");
 shouldBeTrue("({set a(v){}, get a(){}}), true");