Reland of Immediately cache compiled scripts.

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index 8254ee7e9efcab696058f80d976d832c5bb27f9e..0fbefd066554f8ef8730919de84259fdf16d70a0 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -17626,23 +17626,11 @@
   Isolate* isolate = cache->GetIsolate();
   Handle<SharedFunctionInfo> shared(context->closure()->shared());
   StringSharedKey key(src, shared, language_mode, RelocInfo::kNoPosition);
-  {
-    Handle<Object> k = key.AsHandle(isolate);
-    DisallowHeapAllocation no_allocation_scope;
-    int entry = cache->FindEntry(&key);
-    if (entry != kNotFound) {
-      cache->set(EntryToIndex(entry), *k);
-      cache->set(EntryToIndex(entry) + 1, *value);
-      return cache;
-    }
-  }
-
+  Handle<Object> k = key.AsHandle(isolate);
   cache = EnsureCapacity(cache, 1, &key);
   int entry = cache->FindInsertionEntry(key.Hash());
-  Handle<Object> k =
-      isolate->factory()->NewNumber(static_cast<double>(key.Hash()));
   cache->set(EntryToIndex(entry), *k);
-  cache->set(EntryToIndex(entry) + 1, Smi::FromInt(kHashGenerations));
+  cache->set(EntryToIndex(entry) + 1, *value);
   cache->ElementAdded();
   return cache;
 }