Fix issue with multiple properties and emit store.

test/mjsunit/object-literal-multiple-fields.js

+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+(function TestConstants() {
+  var o = {
+    p: 1,
+    p: 2,
+  };
+  assertEquals(2, o.p);
+})();
+
+
+(function TestMaterialized() {
+  var o = {
+    p: [1],
+    p: [2],
+  };
+  assertEquals(2, o.p[0]);
+})();
+
+
+(function TestMaterialize2() {
+  var o = {
+    p: function() {},
+    p: 2,
+  };
+  assertEquals(2, o.p);
+})();
+
+
+
+(function TestComputed() {
+  var o = {
+    p: (function() { return 1; })(),
+    p: (function() { return 2; })(),
+  };
+  assertEquals(2, o.p);
+})();
+
+
+(function TestComputed2() {
+  var o = {
+    p: (function() { return 1; })(),
+    p: 2,
+  };
+  assertEquals(2, o.p);
+})();
+
+
+
+(function TestGetter() {
+  var o = {
+    get p() { return 1; },
+    get p() { return 2; },
+  };
+  assertEquals(2, o.p);
+})();
+
+
+(function TestGetterSetter() {
+  var o = {
+    get p() { return 1; },
+    set p(_) {},
+  };
+  assertEquals(1, o.p);
+
+  o = {
+    set p(_) {},
+    get p() { return 2; },
+  };
+  assertEquals(2, o.p);
+})();
+
+
+(function TestCombined() {
+  var o = {
+    get p() { return 1; },
+    p: 2,
+  };
+  assertEquals(2, o.p);
+
+  o = {
+    get p() { return 1; },
+    p: 2,
+    get p() { return 3; },
+  };
+  assertEquals(3, o.p);
+
+  o = {
+    get p() { return 1; },
+    p: 2,
+    set p(_) {},
+  };
+  assertEquals(undefined, o.p);
+})();