Make the Isolate parameter mandatory in Locker and Unlocker classes.

test/cctest/cctest.cc

 // Copyright 2008 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 51 matching lines @@
   PrintTestList(current->prev());
   if (current->dependency() != NULL) {
     printf("%s/%s<%s\n",
            current->file(), current->name(), current->dependency());
   } else {
     printf("%s/%s<\n", current->file(), current->name());
   }
 }
 
 
+v8::Isolate* CcTest::default_isolate_;
+
 int main(int argc, char* argv[]) {
   v8::internal::FlagList::SetFlagsFromCommandLine(&argc, argv, true);
+  CcTest::set_default_isolate(v8::Isolate::GetCurrent());
+  CHECK(CcTest::default_isolate() != NULL);
   int tests_run = 0;
   bool print_run_count = true;
   for (int i = 1; i < argc; i++) {
     char* arg = argv[i];
     if (strcmp(arg, "--list") == 0) {
       PrintTestList(CcTest::last());
       print_run_count = false;
 
     } else {
       char* arg_copy = v8::internal::StrDup(arg);
@@ skipping 33 matching lines @@
     }
   }
   if (print_run_count && tests_run != 1)
     printf("Ran %i tests.\n", tests_run);
   v8::V8::Dispose();
   return 0;
 }
 
 RegisterThreadedTest *RegisterThreadedTest::first_ = NULL;
 int RegisterThreadedTest::count_ = 0;