[turbofan] Remove some TODOs that no longer apply.

src/compiler/js-global-object-specialization.cc

 // Copyright 2015 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/js-global-object-specialization.h"
 
 #include "src/compilation-dependencies.h"
 #include "src/compiler/access-builder.h"
 #include "src/compiler/common-operator.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/js-operator.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/simplified-operator.h"
 #include "src/lookup.h"
-#include "src/objects-inl.h"  // TODO(mstarzinger): Temporary cycle breaker!
+#include "src/objects-inl.h"
 #include "src/type-cache.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 struct JSGlobalObjectSpecialization::ScriptContextTableLookupResult {
   Handle<Context> context;
   bool immutable;
   int index;
@@ skipping 249 matching lines @@
 }
 
 
 SimplifiedOperatorBuilder* JSGlobalObjectSpecialization::simplified() const {
   return jsgraph()->simplified();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8