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

src/contexts.cc

 // Copyright 2011 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/contexts.h"
 
 #include "src/bootstrapper.h"
 #include "src/debug/debug.h"
+#include "src/isolate-inl.h"
 #include "src/scopeinfo.h"
 
 namespace v8 {
 namespace internal {
 
 
 Handle<ScriptContextTable> ScriptContextTable::Extend(
     Handle<ScriptContextTable> table, Handle<Context> script_context) {
   Handle<ScriptContextTable> result;
   int used = table->used();
@@ skipping 562 matching lines @@
   // During bootstrapping we allow all objects to pass as global
   // objects. This is necessary to fix circular dependencies.
   return isolate->heap()->gc_state() != Heap::NOT_IN_GC ||
       isolate->bootstrapper()->IsActive() ||
       object->IsGlobalObject();
 }
 #endif
 
 }  // namespace internal
 }  // namespace v8