- Make sure to fail early if an non-stacktrace is passed into the VM

runtime/vm/object_store.cc

 // Copyright (c) 2013, 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.
 
 #include "vm/object_store.h"
 
 #include "vm/exceptions.h"
 #include "vm/dart_entry.h"
 #include "vm/isolate.h"
 #include "vm/object.h"
@@ skipping 132 matching lines @@
                                             Symbols::Dot(),
                                             Object::empty_array());
   if (result.IsError()) {
     return false;
   }
   set_out_of_memory(Instance::Cast(result));
 
   // Allocate pre-allocated unhandled exception object initialized with the
   // pre-allocated OutOfMemoryError.
   const UnhandledException& unhandled_exception = UnhandledException::Handle(
-      UnhandledException::New(Instance::Cast(result), Object::null_instance()));
+      UnhandledException::New(Instance::Cast(result),
+                              Stacktrace::Handle(isolate)));
   set_preallocated_unhandled_exception(unhandled_exception);
 
   const Array& code_array = Array::Handle(
       isolate,
       Array::New(Stacktrace::kPreallocatedStackdepth, Heap::kOld));
   const Array& pc_offset_array = Array::Handle(
       isolate,
       Array::New(Stacktrace::kPreallocatedStackdepth, Heap::kOld));
   const Stacktrace& stack_trace =
       Stacktrace::Handle(Stacktrace::New(code_array, pc_offset_array));
@@ skipping 22 matching lines @@
   cls = async_lib.LookupClass(Symbols::StreamIterator());
   ASSERT(!cls.IsNull());
   set_stream_iterator_class(cls);
 
   const Library& internal_lib = Library::Handle(internal_library());
   cls = internal_lib.LookupClass(Symbols::Symbol());
   set_symbol_class(cls);
 }
 
 }  // namespace dart