Reset trunk to 3.24.35.4

src/object-observe.js

Index: src/object-observe.js
diff --git a/src/object-observe.js b/src/object-observe.js
index 468da31ec2588958b985e4cb4346cf20e54122f0..499b27eca1bef61b76b367f591fbc66413cd09bd 100644
--- a/src/object-observe.js
+++ b/src/object-observe.js
@@ -390,13 +390,11 @@ function ObserverEnqueueIfActive(observer, objectInfo, changeRecord,
   }
 
   var callbackInfo = CallbackInfoNormalize(callback);
-  if (IS_NULL(observationState.pendingObservers)) {
+  if (!observationState.pendingObservers)
     observationState.pendingObservers = nullProtoObject();
-    GetMicrotaskQueue().push(ObserveMicrotaskRunner);
-    %SetMicrotaskPending(true);
-  }
   observationState.pendingObservers[callbackInfo.priority] = callback;
   callbackInfo.push(changeRecord);
+  %SetMicrotaskPending(true);
 }
 
 function ObjectInfoEnqueueExternalChangeRecord(objectInfo, changeRecord, type) {
@@ -585,6 +583,7 @@ function ObserveMicrotaskRunner() {
     }
   }
 }
+RunMicrotasks.runners.push(ObserveMicrotaskRunner);
 
 function SetupObjectObserve() {
   %CheckIsBootstrapping();