Make assertion scopes thread safe.

src/isolate.h

 // 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 13 matching lines @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #ifndef V8_ISOLATE_H_
 #define V8_ISOLATE_H_
 
 #include "../include/v8-debug.h"
 #include "allocation.h"
 #include "apiutils.h"
+#include "assert-scope.h"
 #include "atomicops.h"
 #include "builtins.h"
 #include "contexts.h"
 #include "execution.h"
 #include "frames.h"
 #include "date.h"
 #include "global-handles.h"
 #include "handles.h"
 #include "hashmap.h"
 #include "heap.h"
@@ skipping 943 matching lines @@
   HeapProfiler* heap_profiler() const { return heap_profiler_; }
 
 #ifdef DEBUG
   HistogramInfo* heap_histograms() { return heap_histograms_; }
 
   JSObject::SpillInformation* js_spill_information() {
     return &js_spill_information_;
   }
 
   int* code_kind_statistics() { return code_kind_statistics_; }
-
-  HandleDereferenceGuard::State HandleDereferenceGuardState();
-
-  void SetHandleDereferenceGuardState(HandleDereferenceGuard::State state);
 #endif
 
 #if defined(V8_TARGET_ARCH_ARM) && !defined(__arm__) || \
     defined(V8_TARGET_ARCH_MIPS) && !defined(__mips__)
   bool simulator_initialized() { return simulator_initialized_; }
   void set_simulator_initialized(bool initialized) {
     simulator_initialized_ = initialized;
   }
 
   HashMap* simulator_i_cache() { return simulator_i_cache_; }
@@ skipping 292 matching lines @@
   bool simulator_initialized_;
   HashMap* simulator_i_cache_;
   Redirection* simulator_redirection_;
 #endif
 
 #ifdef DEBUG
   // A static array of histogram info for each type.
   HistogramInfo heap_histograms_[LAST_TYPE + 1];
   JSObject::SpillInformation js_spill_information_;
   int code_kind_statistics_[Code::NUMBER_OF_KINDS];
-
-  HandleDereferenceGuard::State compiler_thread_handle_deref_state_;
-  HandleDereferenceGuard::State execution_thread_handle_deref_state_;
 #endif
 
 #ifdef ENABLE_DEBUGGER_SUPPORT
   Debugger* debugger_;
   Debug* debug_;
 #endif
   CpuProfiler* cpu_profiler_;
   HeapProfiler* heap_profiler_;
 
 #define GLOBAL_BACKING_STORE(type, name, initialvalue)                         \
@@ skipping 172 matching lines @@
 
 // Mark the native context with out of memory.
 inline void Context::mark_out_of_memory() {
   native_context()->set_out_of_memory(HEAP->true_value());
 }
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ISOLATE_H_