Make isolate.h usable without objects-inl.h header.

src/flags.cc

 // Copyright 2006-2008 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/flags.h"
 
 #include <cctype>
 #include <cstdlib>
 #include <sstream>
 
 #include "src/allocation.h"
 #include "src/assembler.h"
 #include "src/base/functional.h"
 #include "src/base/platform/platform.h"
-#include "src/objects-inl.h"  // TODO(mstarzinger): Temporary cycle breaker!
+#include "src/list-inl.h"
 #include "src/ostreams.h"
 #include "src/utils.h"
 
 namespace v8 {
 namespace internal {
 
 // Define all of our flags.
 #define FLAG_MODE_DEFINE
 #include "src/flag-definitions.h"  // NOLINT
 
@@ skipping 546 matching lines @@
 #define FLAG_MODE_DEFINE_IMPLICATIONS
 #include "src/flag-definitions.h"
 #undef FLAG_MODE_DEFINE_IMPLICATIONS
   ComputeFlagListHash();
 }
 
 
 uint32_t FlagList::Hash() { return flag_hash; }
 }  // namespace internal
 }  // namespace v8