Version 3.5.6.

src/bootstrapper.cc

 // Copyright 2011 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 1180 matching lines @@
 }
 
 
 void Genesis::InitializeExperimentalGlobal() {
   Isolate* isolate = this->isolate();
   Handle<JSObject> global = Handle<JSObject>(global_context()->global());
 
   // TODO(mstarzinger): Move this into Genesis::InitializeGlobal once we no
   // longer need to live behind a flag, so WeakMap gets added to the snapshot.
   if (FLAG_harmony_weakmaps) {  // -- W e a k M a p
-    Handle<JSFunction> weakmap_fun =
-        InstallFunction(global, "WeakMap", JS_WEAK_MAP_TYPE, JSWeakMap::kSize,
-                        isolate->initial_object_prototype(),
-                        Builtins::kIllegal, true);
+    InstallFunction(global, "WeakMap", JS_WEAK_MAP_TYPE, JSWeakMap::kSize,
+                    isolate->initial_object_prototype(),
+                    Builtins::kIllegal, true);
   }
 }
 
 
 bool Genesis::CompileBuiltin(Isolate* isolate, int index) {
   Vector<const char> name = Natives::GetScriptName(index);
   Handle<String> source_code =
       isolate->bootstrapper()->NativesSourceLookup(index);
   return CompileNative(name, source_code);
 }
@@ skipping 1005 matching lines @@
   return from + sizeof(NestingCounterType);
 }
 
 
 // Called when the top-level V8 mutex is destroyed.
 void Bootstrapper::FreeThreadResources() {
   ASSERT(!IsActive());
 }
 
 } }  // namespace v8::internal