Fix for heap corruption issue when patch https://codereview.chromium.org/2225243003/ is applied.

runtime/vm/isolate_reload.cc

 // 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.
 
 #include "vm/isolate_reload.h"
 
 #include "vm/become.h"
 #include "vm/bit_vector.h"
 #include "vm/code_generator.h"
 #include "vm/compiler.h"
@@ skipping 188 matching lines @@
 
 
 void ReasonForCancelling::AppendTo(JSONArray* array) {
   JSONObject jsobj(array);
   jsobj.AddProperty("type", "ReasonForCancelling");
   const String& message = String::Handle(ToString());
   jsobj.AddProperty("message", message.ToCString());
 }
 
 
+ClassReasonForCancelling::ClassReasonForCancelling(Zone* zone,
+                                                   const Class& from,
+                                                   const Class& to)
+    : ReasonForCancelling(zone),
+      from_(Class::ZoneHandle(zone, from.raw())),
+      to_(Class::ZoneHandle(zone, to.raw())) {
+}
+
+
 void ClassReasonForCancelling::AppendTo(JSONArray* array) {
   JSONObject jsobj(array);
   jsobj.AddProperty("type", "ReasonForCancelling");
   jsobj.AddProperty("class", from_);
   const String& message = String::Handle(ToString());
   jsobj.AddProperty("message", message.ToCString());
 }
 
 
 RawError* IsolateReloadContext::error() const {
@@ skipping 187 matching lines @@
 
 
 void IsolateReloadContext::ReportSuccess() {
   ServiceEvent service_event(I, ServiceEvent::kIsolateReload);
   Service::HandleEvent(&service_event);
 }
 
 
 class Aborted : public ReasonForCancelling {
  public:
-  explicit Aborted(Zone* zone, const Error& error)
-      : ReasonForCancelling(zone), error_(error) { }
+  Aborted(Zone* zone, const Error& error)
+      : ReasonForCancelling(zone),
+        error_(Error::ZoneHandle(zone, error.raw())) {
+  }
 
  private:
   const Error& error_;
 
   RawError* ToError() { return error_.raw(); }
   RawString* ToString() {
     return String::NewFormatted("%s", error_.ToErrorCString());
   }
 };
 
@@ skipping 1238 matching lines @@
         ASSERT(!super_cls.IsNull());
         super_cls.AddDirectSubclass(cls);
       }
     }
   }
 }
 
 #endif  // !PRODUCT
 
 }  // namespace dart