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

src/debug/debug-scopes.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/debug/debug-scopes.h"
 
 #include "src/debug/debug.h"
 #include "src/frames-inl.h"
 #include "src/globals.h"
+#include "src/isolate-inl.h"
 #include "src/parser.h"
 #include "src/scopes.h"
 
 namespace v8 {
 namespace internal {
 
 ScopeIterator::ScopeIterator(Isolate* isolate, FrameInspector* frame_inspector,
                              bool ignore_nested_scopes)
     : isolate_(isolate),
       frame_inspector_(frame_inspector),
@@ skipping 760 matching lines @@
         isolate_, value, Object::GetPropertyOrElement(extension, key), false);
     RETURN_ON_EXCEPTION_VALUE(
         isolate_, JSObject::SetOwnPropertyIgnoreAttributes(
             scope_object, key, value, NONE), false);
   }
   return true;
 }
 
 }  // namespace internal
 }  // namespace v8