Clean JS function results cache on each major GC.

src/objects-debug.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 1310 matching lines @@
     if (hash < current) {
       PrintDescriptors();
       return false;
     }
     current = hash;
   }
   return true;
 }
 
 
+void JSFunctionResultCache::JSFunctionResultCacheVerify() {
+  JSFunction::cast(get(kFactoryIndex))->Verify();
+
+  int size = Smi::cast(get(kCacheSizeIndex))->value();
+  ASSERT(kEntriesIndex <= size);
+  ASSERT(size <= length());
+  ASSERT_EQ(0, size % kEntrySize);
+
+  int finger = Smi::cast(get(kFingerIndex))->value();
+  ASSERT(kEntriesIndex <= finger);
+  ASSERT(finger < size || finger == kEntriesIndex);
+  ASSERT_EQ(0, finger % kEntrySize);
+
+  if (FLAG_enable_slow_asserts) {
+    for (int i = kEntriesIndex; i < size; i++) {
+      ASSERT(!get(i)->IsTheHole());
+      get(i)->Verify();
+    }
+    for (int i = size; i < length(); i++) {
+      ASSERT(get(i)->IsTheHole());
+      get(i)->Verify();
+    }
+  }
+}
+
+
 #endif  // DEBUG
 
 } }  // namespace v8::internal