Only flush code when there are no heap allocated locals in the scopeinfo....

src/scopeinfo.h

 // 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 94 matching lines @@
 
   // Does this scope call eval.
   static bool CallsEval(Code* code);
 
   // Return the number of stack slots for code.
   static int NumberOfStackSlots(Code* code);
 
   // Return the number of context slots for code.
   static int NumberOfContextSlots(Code* code);
 
+  // Return if this has context slots besides MIN_CONTEXT_SLOTS;
+  static bool HasHeapAllocatedLocals(Code* code);
+
   // Lookup support for scope info embedded in Code objects. Returns
   // the stack slot index for a given slot name if the slot is
   // present; otherwise returns a value < 0. The name must be a symbol
   // (canonicalized).
   static int StackSlotIndex(Code* code, String* name);
 
   // Lookup support for scope info embedded in Code objects. Returns the
   // context slot index for a given slot name if the slot is present; otherwise
   // returns a value < 0. The name must be a symbol (canonicalized).
   // If the slot is present and mode != NULL, sets *mode to the corresponding
@@ skipping 103 matching lines @@
   };
 
   static Key keys_[kLength];
   static uint32_t values_[kLength];
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_SCOPEINFO_H_