Don't attempt to transition JSProxy to an observed map / Object.getNotifier() must SetObserved

test/mjsunit/harmony/object-observe.js

 // Copyright 2012 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 241 matching lines @@
   type: 'updated',
 });
 Object.observe(obj, observer.callback);
 Object.getNotifier(obj).notify({
   type: 'updated',
 });
 records = undefined;
 Object.deliverChangeRecords(observer.callback);
 observer.assertRecordCount(1);
 
+// Get notifier prior to observing
+reset();
+var obj = {};
+Object.getNotifier(obj);
+Object.observe(obj, observer.callback);
+obj.id = 1;
+Object.deliverChangeRecords(observer.callback);
+observer.assertCallbackRecords([
+  { object: obj, type: 'new', name: 'id' },
+]);
 
 // Observing a continuous stream of changes, while itermittantly unobserving.
 reset();
 Object.observe(obj, observer.callback);
 Object.getNotifier(obj).notify({
   type: 'updated',
   val: 1
 });
 
 Object.unobserve(obj, observer.callback);
@@ skipping 504 matching lines @@
 delete obj[symbol];
 obj.__defineSetter__(symbol, function() {});
 obj.__defineGetter__(symbol, function() {});
 Object.deliverChangeRecords(observer.callback);
 observer.assertNotCalled();
 
 
 // Test all kinds of objects generically.
 function TestObserveConfigurable(obj, prop) {
   reset();
+  Object.observe(obj, observer.callback);
+  Object.unobserve(obj, observer.callback);
   obj[prop] = 1;
   Object.observe(obj, observer.callback);
   obj[prop] = 2;
   obj[prop] = 3;
   delete obj[prop];
   obj[prop] = 4;
   obj[prop] = 4;  // ignored
   obj[prop] = 5;
   Object.defineProperty(obj, prop, {value: 6});
   Object.defineProperty(obj, prop, {writable: false});
@@ skipping 49 matching lines @@
     { object: obj, name: prop, type: "updated", oldValue: 12 },
     { object: obj, name: prop, type: "deleted", oldValue: 36 },
     { object: obj, name: prop, type: "new" },
   ]);
   Object.unobserve(obj, observer.callback);
   delete obj[prop];
 }
 
 function TestObserveNonConfigurable(obj, prop, desc) {
   reset();
+  Object.observe(obj, observer.callback);
+  Object.unobserve(obj, observer.callback);
   obj[prop] = 1;
   Object.observe(obj, observer.callback);
   obj[prop] = 4;
   obj[prop] = 4;  // ignored
   obj[prop] = 5;
   Object.defineProperty(obj, prop, {value: 6});
   Object.defineProperty(obj, prop, {value: 6});  // ignored
   Object.defineProperty(obj, prop, {value: 7});
   Object.defineProperty(obj, prop, {enumerable: desc.enumerable});  // ignored
   Object.defineProperty(obj, prop, {writable: false});
@@ skipping 647 matching lines @@
     for (var n1 = 0; n1 < 3; ++n1)
       for (var n2 = 0; n2 < 3; ++n2)
         for (var i in mutation)
           TestFastElementsLength(mutation[i], b1 != 0, b2 != 0, 20*n1, 20*n2);
 
 for (var b1 = 0; b1 < 2; ++b1)
   for (var b2 = 0; b2 < 2; ++b2)
     for (var n = 0; n < 3; ++n)
       for (var i in mutationByIncr)
         TestFastElementsLength(mutationByIncr[i], b1 != 0, b2 != 0, 7*n, 7*n+1);