Don't use TLS for space iterators.

test/cctest/test-debug.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 408 matching lines @@
   // Check that the debugger context is cleared and that there is no debug
   // information stored for the debugger.
   CHECK(Isolate::Current()->debug()->debug_context().is_null());
   CHECK_EQ(NULL, Isolate::Current()->debug()->debug_info_list_);
 
   // Collect garbage to ensure weak handles are cleared.
   HEAP->CollectAllGarbage(Heap::kNoGCFlags);
   HEAP->CollectAllGarbage(Heap::kMakeHeapIterableMask);
 
   // Iterate the head and check that there are no debugger related objects left.
-  HeapIterator iterator;
+  HeapIterator iterator(HEAP);
   for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) {
     CHECK(!obj->IsDebugInfo());
     CHECK(!obj->IsBreakPointInfo());
 
     // If deep check of functions is requested check that no debug break code
     // is left in all functions.
     if (check_functions) {
       if (obj->IsJSFunction()) {
         JSFunction* fun = JSFunction::cast(obj);
         for (RelocIterator it(fun->shared()->code()); !it.done(); it.next()) {
@@ skipping 7083 matching lines @@
 TEST(LiveEditDisabled) {
   v8::internal::FLAG_allow_natives_syntax = true;
   v8::HandleScope scope;
   LocalContext context;
   v8::Debug::SetLiveEditEnabled(false);
   CompileRun("%LiveEditCompareStrings('', '')");
 }
 
 
 #endif  // ENABLE_DEBUGGER_SUPPORT