Fix for issue 9617, throw a snapshot write error when encountering stacktrace objects instead of an…

runtime/vm/snapshot.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_SNAPSHOT_H_
 #define VM_SNAPSHOT_H_
 
 #include "platform/assert.h"
 #include "vm/allocation.h"
 #include "vm/bitfield.h"
@@ skipping 487 matching lines @@
   void WriteObjectImpl(RawObject* raw);
   void WriteInlinedObject(RawObject* raw);
   void WriteForwardedObjects();
   void ArrayWriteTo(intptr_t object_id,
                     intptr_t array_kind,
                     intptr_t tags,
                     RawSmi* length,
                     RawAbstractTypeArguments* type_arguments,
                     RawObject* data[]);
   void CheckIfSerializable(RawClass* cls);
+  void SetWriteException(Exceptions::ExceptionType type, const char* msg);
   void WriteInstance(intptr_t object_id,
                      RawObject* raw,
                      RawClass* cls,
                      intptr_t tags);
   void WriteInstanceRef(RawObject* raw, RawClass* cls);
 
   ObjectStore* object_store() const { return object_store_; }
 
  private:
   Snapshot::Kind kind_;
   ObjectStore* object_store_;  // Object store for common classes.
   ClassTable* class_table_;  // Class table for the class index to class lookup.
   GrowableArray<ForwardObjectNode*> forward_list_;
   Exceptions::ExceptionType exception_type_;  // Exception type.
   const char* exception_msg_;  // Message associated with exception.
   LanguageError& error_;  // Error handle.
 
   friend class RawArray;
   friend class RawClass;
   friend class RawClosureData;
   friend class RawGrowableObjectArray;
   friend class RawImmutableArray;
   friend class RawJSRegExp;
   friend class RawLibrary;
   friend class RawLiteralToken;
   friend class RawScript;
+  friend class RawStacktrace;
   friend class RawTokenStream;
   friend class RawTypeArguments;
   friend class SnapshotWriterVisitor;
   DISALLOW_COPY_AND_ASSIGN(SnapshotWriter);
 };
 
 
 class FullSnapshotWriter : public SnapshotWriter {
  public:
   static const intptr_t kInitialSize = 64 * KB;
@@ skipping 66 matching lines @@
  private:
   SnapshotWriter* writer_;
   bool as_references_;
 
   DISALLOW_COPY_AND_ASSIGN(SnapshotWriterVisitor);
 };
 
 }  // namespace dart
 
 #endif  // VM_SNAPSHOT_H_