Added check that the object being stored as a return value in the NativeArguments array is a Dart i…

runtime/vm/raw_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 VM_RAW_OBJECT_H_
 #define VM_RAW_OBJECT_H_
 
 #include "platform/assert.h"
 #include "vm/globals.h"
 #include "vm/token.h"
@@ skipping 323 matching lines @@
     ptr()->tags_ = CanonicalObjectTag::update(true, tags);
   }
   bool IsCreatedFromSnapshot() const {
     return CreatedFromSnapshotTag::decode(ptr()->tags_);
   }
   void SetCreatedFromSnapshot() {
     uword tags = ptr()->tags_;
     ptr()->tags_ = CreatedFromSnapshotTag::update(true, tags);
   }
 
+  bool IsDartInstance() {
+    return (!IsHeapObject() || (GetClassId() >= kInstanceCid));
+  }
+
   intptr_t Size() const {
     uword tags = ptr()->tags_;
     intptr_t result = SizeTag::decode(tags);
     if (result != 0) {
       ASSERT(result == SizeFromClass());
       return result;
     }
     result = SizeFromClass();
     ASSERT(result > SizeTag::kMaxSizeTag);
     return result;
@@ skipping 1521 matching lines @@
 inline intptr_t RawObject::NumberOfTypedDataClasses() {
   // Make sure this is updated when new TypedData types are added.
   ASSERT(kExternalTypedDataInt8ArrayCid == kTypedDataInt8ArrayCid + 11);
   ASSERT(kNullCid == kExternalTypedDataInt8ArrayCid + 11);
   return (kNullCid - kTypedDataInt8ArrayCid);
 }
 
 }  // namespace dart
 
 #endif  // VM_RAW_OBJECT_H_