Fix for issue #28287 (Illegal argument in isolate message : (object is a regular Dart Instance))

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 RUNTIME_VM_RAW_OBJECT_H_
 #define RUNTIME_VM_RAW_OBJECT_H_
 
 #include "platform/assert.h"
 #include "vm/atomic.h"
 #include "vm/globals.h"
@@ skipping 684 matching lines @@
   int16_t num_type_arguments_;  // Number of type arguments in flattened vector.
   int16_t num_own_type_arguments_;  // Number of non-overlapping type arguments.
   uint16_t num_native_fields_;      // Number of native fields in class.
   uint16_t state_bits_;
 
   friend class Instance;
   friend class Isolate;
   friend class Object;
   friend class RawInstance;
   friend class RawInstructions;
+  friend class RawTypeArguments;
   friend class SnapshotReader;
   friend class InstanceSerializationCluster;
   friend class CidRewriteVisitor;
 };
 
 
 class RawUnresolvedClass : public RawObject {
   RAW_HEAP_OBJECT_IMPLEMENTATION(UnresolvedClass);
 
   RawObject** from() {
@@ skipping 979 matching lines @@
     RawFunction* signature_;   // If not null, this type is a function type.
     RawLanguageError* error_;  // If not null, type is malformed or malbounded.
   } sig_or_err_;
   RawObject** to() {
     return reinterpret_cast<RawObject**>(&ptr()->sig_or_err_.error_);
   }
   TokenPosition token_pos_;
   int8_t type_state_;
 
   friend class CidRewriteVisitor;
+  friend class RawTypeArguments;
 };
 
 
 class RawTypeRef : public RawAbstractType {
  private:
   RAW_HEAP_OBJECT_IMPLEMENTATION(TypeRef);
 
   RawObject** from() { return reinterpret_cast<RawObject**>(&ptr()->type_); }
   RawAbstractType* type_;  // The referenced type.
   RawObject** to() { return reinterpret_cast<RawObject**>(&ptr()->type_); }
@@ skipping 708 matching lines @@
   COMPILE_ASSERT(kExternalTypedDataInt8ArrayCid ==
                  kTypedDataInt8ArrayViewCid + 15);
   COMPILE_ASSERT(kByteBufferCid == kExternalTypedDataInt8ArrayCid + 14);
   COMPILE_ASSERT(kNullCid == kByteBufferCid + 1);
   return (kNullCid - kTypedDataInt8ArrayCid);
 }
 
 }  // namespace dart
 
 #endif  // RUNTIME_VM_RAW_OBJECT_H_