Strict mode object literal validation

test/mjsunit/strict-mode.js

Index: test/mjsunit/strict-mode.js
diff --git a/test/mjsunit/strict-mode.js b/test/mjsunit/strict-mode.js
index 924b34f936c274684e0e3cc2921b2563fb76aa05..759fd7c64f838085a6055688b4e7c8c8ff23ad50 100644
--- a/test/mjsunit/strict-mode.js
+++ b/test/mjsunit/strict-mode.js
@@ -115,3 +115,21 @@ function NotStrict(eval) {
   }
   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)
+