Immediately cache compiled scripts.

src/objects.cc

Index: src/objects.cc
diff --git a/src/objects.cc b/src/objects.cc
index 8254ee7e9efcab696058f80d976d832c5bb27f9e..08c347c955c0a3e52958330326c88b351623d99d 100644
--- a/src/objects.cc
+++ b/src/objects.cc
@@ -17626,8 +17626,8 @@ Handle<CompilationCacheTable> CompilationCacheTable::Put(
   Isolate* isolate = cache->GetIsolate();
   Handle<SharedFunctionInfo> shared(context->closure()->shared());
   StringSharedKey key(src, shared, language_mode, RelocInfo::kNoPosition);
+  Handle<Object> k = key.AsHandle(isolate);
   {
-    Handle<Object> k = key.AsHandle(isolate);
     DisallowHeapAllocation no_allocation_scope;
     int entry = cache->FindEntry(&key);

[Yang, 2016/04/15 12:03:38]

I don't think this code path is actually possible. We only put a new entry into
the cache if we haven't found it previously. You could implement this just like
PutRegExp below.

     if (entry != kNotFound) {
@@ -17639,10 +17639,8 @@ Handle<CompilationCacheTable> CompilationCacheTable::Put(
 
   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;
 }