Do not embed is_auto_setup_scope into the compilation of native calls.

runtime/vm/object.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef RUNTIME_VM_OBJECT_H_
 #define RUNTIME_VM_OBJECT_H_
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "platform/utils.h"
@@ skipping 2602 matching lines @@
 #endif
   }
 
   void set_kernel_function(void* kernel_function) const {
 #if !defined(DART_PRECOMPILED_RUNTIME)
     StoreNonPointer(&raw_ptr()->kernel_function_, kernel_function);
 #endif
   }
 
   bool IsOptimizable() const;
-  bool IsNativeAutoSetupScope() const;
   void SetIsOptimizable(bool value) const;
-  void SetIsNativeAutoSetupScope(bool value) const;
 
   bool CanBeInlined() const;
 
   MethodRecognizer::Kind recognized_kind() const {
     return RecognizedBits::decode(raw_ptr()->kind_tag_);
   }
   void set_recognized_kind(MethodRecognizer::Kind value) const;
 
   bool IsRecognized() const {
     return recognized_kind() != MethodRecognizer::kUnknown;
@@ skipping 6333 matching lines @@
 
 inline void TypeArguments::SetHash(intptr_t value) const {
   // This is only safe because we create a new Smi, which does not cause
   // heap allocation.
   StoreSmi(&raw_ptr()->hash_, Smi::New(value));
 }
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_OBJECT_H_