Deserializer: flush code cache while code pointers are still valid.

src/snapshot/serialize.h

Index: src/snapshot/serialize.h
diff --git a/src/snapshot/serialize.h b/src/snapshot/serialize.h
index 49eeb69e9368008a7e9b802ddf0ebb3db20e63d4..2863ede5034ed64b1e5823b32c5457836a27bb4c 100644
--- a/src/snapshot/serialize.h
+++ b/src/snapshot/serialize.h
@@ -547,8 +547,6 @@ class Deserializer: public SerializerDeserializer {
   // Deserialize a shared function info. Fail gracefully.
   MaybeHandle<SharedFunctionInfo> DeserializeCode(Isolate* isolate);
 
-  void FlushICacheForNewCodeObjects();
-
   // Pass a vector of externally-provided objects referenced by the snapshot.
   // The ownership to its backing store is handed over as well.
   void SetAttachedObjects(Vector<Handle<Object> > attached_objects) {
@@ -576,6 +574,9 @@ class Deserializer: public SerializerDeserializer {
 
   void DeserializeDeferredObjects();
 
+  void FlushICacheForNewIsolate();
+  void FlushICacheForNewCodeObjects();
+
   void CommitPostProcessedObjects(Isolate* isolate);
 
   // Fills in some heap data in an area from start to end (non-inclusive).  The