VM: Allow configuring use_field_guards on the per-isolate basis and include it into snapshot featur…

runtime/vm/clustered_snapshot.h

 // Copyright (c) 2016, 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_CLUSTERED_SNAPSHOT_H_
 #define RUNTIME_VM_CLUSTERED_SNAPSHOT_H_
 
 #include "platform/assert.h"
 #include "vm/allocation.h"
 #include "vm/bitfield.h"
@@ skipping 342 matching lines @@
   }
 
   RawInstructions* GetInstructionsAt(int32_t offset) {
     return instructions_reader_->GetInstructionsAt(offset);
   }
 
   RawObject* GetObjectAt(int32_t offset) {
     return instructions_reader_->GetObjectAt(offset);
   }
 
-  RawApiError* VerifyVersionAndFeatures();
+  RawApiError* VerifyVersionAndFeatures(Isolate* isolate);
 
   void Prepare();
   void Deserialize();
 
   DeserializationCluster* ReadCluster();
 
   intptr_t next_index() const { return next_ref_index_; }
   Heap* heap() const { return heap_; }
   Snapshot::Kind kind() const { return kind_; }
 
@@ skipping 87 matching lines @@
   intptr_t size_;
   const uint8_t* instructions_buffer_;
   const uint8_t* data_buffer_;
 
   DISALLOW_COPY_AND_ASSIGN(FullSnapshotReader);
 };
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_CLUSTERED_SNAPSHOT_H_