Clean JS function results cache on each major GC.

src/bootstrapper.cc

 // Copyright 2006-2008 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 1317 matching lines @@
 
 // Do not forget to update macros.py with named constant
 // of cache id.
 #define JSFUNCTION_RESULT_CACHE_LIST(F) \
   F(16, global_context()->regexp_function())
 
 
 static FixedArray* CreateCache(int size, JSFunction* factory) {
   // Caches are supposed to live for a long time, allocate in old space.
   int array_size = JSFunctionResultCache::kEntriesIndex + 2 * size;
-  Handle<FixedArray> cache =
-      Factory::NewFixedArrayWithHoles(array_size, TENURED);
+  // Cannot use cast as object is not fully initialized yet.
+  JSFunctionResultCache* cache = reinterpret_cast<JSFunctionResultCache*>(
+      *Factory::NewFixedArrayWithHoles(array_size, TENURED));
   cache->set(JSFunctionResultCache::kFactoryIndex, factory);
-  cache->set(JSFunctionResultCache::kFingerIndex,
-      Smi::FromInt(JSFunctionResultCache::kEntriesIndex));
-  cache->set(JSFunctionResultCache::kCacheSizeIndex,
-      Smi::FromInt(JSFunctionResultCache::kEntriesIndex));
-  return *cache;
+  cache->MakeZeroSize();
+  return cache;
 }
 
 
 void Genesis::InstallJSFunctionResultCaches() {
   const int kNumberOfCaches = 0 +
 #define F(size, func) + 1
     JSFUNCTION_RESULT_CACHE_LIST(F)
 #undef F
   ;
 
@@ skipping 425 matching lines @@
 }
 
 
 // Restore statics that are thread local.
 char* BootstrapperActive::RestoreState(char* from) {
   nesting_ = *reinterpret_cast<int*>(from);
   return from + sizeof(nesting_);
 }
 
 } }  // namespace v8::internal