Fix bug 1433: clear the global thread table when an isolate is disposed.

src/isolate.h

 // Copyright 2011 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 511 matching lines @@
 
   // Debug.
   // Mutex for serializing access to break control structures.
   Mutex* break_access() { return break_access_; }
 
   Address get_address_from_id(AddressId id);
 
   // Access to top context (where the current function object was created).
   Context* context() { return thread_local_top_.context_; }
   void set_context(Context* context) {
+    ASSERT(context == NULL || context->IsContext());
     thread_local_top_.context_ = context;
   }
   Context** context_address() { return &thread_local_top_.context_; }
 
   SaveContext* save_context() {return thread_local_top_.save_context_; }
   void set_save_context(SaveContext* save) {
     thread_local_top_.save_context_ = save;
   }
 
   // Access to current thread id.
@@ skipping 454 matching lines @@
   // modified.
   class ThreadDataTable {
    public:
     ThreadDataTable();
     ~ThreadDataTable();
 
     PerIsolateThreadData* Lookup(Isolate* isolate, ThreadId thread_id);
     void Insert(PerIsolateThreadData* data);
     void Remove(Isolate* isolate, ThreadId thread_id);
     void Remove(PerIsolateThreadData* data);
+    void RemoveAllThreads(Isolate* isolate);
 
    private:
     PerIsolateThreadData* list_;
   };
 
   // These items form a stack synchronously with threads Enter'ing and Exit'ing
   // the Isolate. The top of the stack points to a thread which is currently
   // running the Isolate. When the stack is empty, the Isolate is considered
   // not entered by any thread and can be Disposed.
   // If the same thread enters the Isolate more then once, the entry_count_
@@ skipping 347 matching lines @@
 
 } }  // namespace v8::internal
 
 // TODO(isolates): Get rid of these -inl.h includes and place them only where
 //                 they're needed.
 #include "allocation-inl.h"
 #include "zone-inl.h"
 #include "frames-inl.h"
 
 #endif  // V8_ISOLATE_H_