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

src/debug.cc

Index: src/debug.cc
diff --git a/src/debug.cc b/src/debug.cc
index 0ffdd0043e57c55f6d6e92720f4f0d4f3b2f0a49..2f0442c225af83ca89daafb94193d4ab4565c963 100644
--- a/src/debug.cc
+++ b/src/debug.cc
@@ -606,7 +606,7 @@ const int Debug::kFrameDropperFrameSize = 4;
 void ScriptCache::Add(Handle<Script> script) {
   GlobalHandles* global_handles = Isolate::Current()->global_handles();
   // Create an entry in the hash map for the script.
-  int id = Smi::cast(script->id())->value();
+  int id = script->id()->value();
   HashMap::Entry* entry =
       HashMap::Lookup(reinterpret_cast<void*>(id), Hash(id), true);
   if (entry->value != NULL) {
@@ -674,7 +674,7 @@ void ScriptCache::HandleWeakScript(v8::Isolate* isolate,
   ASSERT((*location)->IsScript());
 
   // Remove the entry from the cache.
-  int id = Smi::cast((*location)->id())->value();
+  int id = (*location)->id()->value();
   script_cache->Remove(reinterpret_cast<void*>(id), Hash(id));
   script_cache->collected_scripts_.Add(id);