Fix performance regressions due to lazy initialization.

src/d8.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1389 matching lines @@
       printf("Warning: unknown flag %s.\nTry --help for options\n", argv[i]);
     }
   }
   current->End(argc);
 
   return true;
 }
 
 
 int Shell::RunMain(int argc, char* argv[]) {
+  i::Isolate::GlobalSetup();
 #ifndef V8_SHARED
   i::List<i::Thread*> threads(1);
   if (options.parallel_files != NULL) {
     for (int i = 0; i < options.num_parallel_files; i++) {
       char* files = NULL;
       { Locker lock(Isolate::GetCurrent());
         int size = 0;
         files = ReadChars(options.parallel_files[i], &size);
       }
       if (files == NULL) {
@@ skipping 133 matching lines @@
 }
 
 }  // namespace v8
 
 
 #ifndef GOOGLE3
 int main(int argc, char* argv[]) {
   return v8::Shell::Main(argc, argv);
 }
 #endif