Sort class IDs before training AppJIT snapshots

runtime/bin/main.cc

 // 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.
 
 #include <stdlib.h>
 #include <string.h>
 #include <stdio.h>
 
 #include "include/dart_api.h"
 #include "include/dart_tools_api.h"
@@ skipping 1430 matching lines @@
     }
 
     if (gen_snapshot_kind == kAppAOT) {
       GenerateAppAOTSnapshot();
     } else {
       if (Dart_IsNull(root_lib)) {
         ErrorExit(kErrorExitCode, "Unable to find root library for '%s'\n",
                   script_name);
       }
 
+      if (gen_snapshot_kind == kAppJIT) Dart_SortClasses();
+
       // The helper function _getMainClosure creates a closure for the main
       // entry point which is either explicitly or implictly exported from the
       // root library.
       Dart_Handle main_closure =
           Dart_Invoke(isolate_data->builtin_lib(),
                       Dart_NewStringFromCString("_getMainClosure"), 0, NULL);
       CHECK_RESULT(main_closure);
 
       // Call _startIsolate in the isolate library to enable dispatching the
       // initial startup message.
@@ skipping 282 matching lines @@
   Platform::Exit(Process::GlobalExitCode());
 }
 
 }  // namespace bin
 }  // namespace dart
 
 int main(int argc, char** argv) {
   dart::bin::main(argc, argv);
   UNREACHABLE();
 }