DBC: Fix checked mode stack traces

runtime/vm/exceptions.cc

 // Copyright (c) 2011, 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/exceptions.h"
 
 #include "platform/address_sanitizer.h"
 
 #include "vm/dart_api_impl.h"
 #include "vm/dart_entry.h"
@@ skipping 596 matching lines @@
     if (exception.raw() != isolate->object_store()->out_of_memory() &&
         exception.raw() != isolate->object_store()->stack_overflow()) {
       isolate->debugger()->PauseException(exception);
     }
   }
   // Null object is a valid exception object.
   ThrowExceptionHelper(thread, exception, Stacktrace::Handle(thread->zone()),
                        false);
 }
 
+
 void Exceptions::ReThrow(Thread* thread,
                          const Instance& exception,
                          const Instance& stacktrace) {
   // Null object is a valid exception object.
   ThrowExceptionHelper(thread, exception, stacktrace, true);
 }
 
 
 void Exceptions::PropagateError(const Error& error) {
   Thread* thread = Thread::Current();
@@ skipping 160 matching lines @@
       class_name = &Symbols::_CompileTimeError();
       break;
   }
 
   return DartLibraryCalls::InstanceCreate(library, *class_name,
                                           *constructor_name, arguments);
 }
 
 
 }  // namespace dart