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

src/debug/liveedit.cc

 // Copyright 2012 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/debug/liveedit.h"
 
 #include "src/code-stubs.h"
 #include "src/compilation-cache.h"
 #include "src/compiler.h"
 #include "src/debug/debug.h"
 #include "src/deoptimizer.h"
 #include "src/frames-inl.h"
 #include "src/global-handles.h"
+#include "src/isolate-inl.h"
 #include "src/messages.h"
 #include "src/parser.h"
 #include "src/scopeinfo.h"
 #include "src/scopes.h"
 #include "src/v8.h"
 #include "src/v8memory.h"
 
 namespace v8 {
 namespace internal {
 
@@ skipping 1978 matching lines @@
   isolate_->active_function_info_listener()->FunctionCode(code);
 }
 
 
 bool LiveEditFunctionTracker::IsActive(Isolate* isolate) {
   return isolate->active_function_info_listener() != NULL;
 }
 
 }  // namespace internal
 }  // namespace v8