CPUProfiler: It is not clear why we are using Handle<Object> for scriptId. Lets flip it into Smi/in…

src/heap-inl.h

 // Copyright 2012 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 552 matching lines @@
            change_in_bytes / KB,
            amount_of_external_allocated_memory_ / KB,
            PromotedExternalMemorySize() / KB,
            reinterpret_cast<intptr_t>(isolate()));
   }
   ASSERT(amount_of_external_allocated_memory_ >= 0);
   return amount_of_external_allocated_memory_;
 }
 
 
-void Heap::SetLastScriptId(Object* last_script_id) {
-  roots_[kLastScriptIdRootIndex] = last_script_id;
-}
-
-
 Isolate* Heap::isolate() {
   return reinterpret_cast<Isolate*>(reinterpret_cast<intptr_t>(this) -
       reinterpret_cast<size_t>(reinterpret_cast<Isolate*>(4)->heap()) + 4);
 }
 
 
 #ifdef DEBUG
 #define GC_GREEDY_CHECK() \
   if (FLAG_gc_greedy) HEAP->GarbageCollectionGreedyCheck()
 #else
@@ skipping 277 matching lines @@
 DisallowAllocationFailure::~DisallowAllocationFailure() {
 #ifdef DEBUG
   HEAP->disallow_allocation_failure_ = old_state_;
 #endif
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HEAP_INL_H_