Make assertion scopes thread safe.

src/builtins.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 545 matching lines @@
       MaybeObject* maybe_failure = accessor->CopyElements(
            NULL, 0, kind, new_elms, 0,
            ElementsAccessor::kCopyToEndAndInitializeToHole, elms_obj);
       ASSERT(!maybe_failure->IsFailure());
       USE(maybe_failure);
 
       elms = new_elms;
     }
 
     // Add the provided values.
-    AssertNoAllocation no_gc;
+    DisallowHeapAllocation no_gc;
     WriteBarrierMode mode = elms->GetWriteBarrierMode(no_gc);
     for (int index = 0; index < to_add; index++) {
       elms->set(index + len, args[index + 1], mode);
     }
 
     if (elms != array->elements()) {
       array->set_elements(elms);
     }
 
     // Set the length.
@@ skipping 28 matching lines @@
               ElementsAccessor::kCopyToEndAndInitializeToHole, elms_obj);
       ASSERT(!maybe_failure->IsFailure());
       USE(maybe_failure);
     } else {
       // to_add is > 0 and new_length <= elms_len, so elms_obj cannot be the
       // empty_fixed_array.
       new_elms = FixedDoubleArray::cast(elms_obj);
     }
 
     // Add the provided values.
-    AssertNoAllocation no_gc;
+    DisallowHeapAllocation no_gc;
     int index;
     for (index = 0; index < to_add; index++) {
       Object* arg = args[index + 1];
       new_elms->set(index + len, arg->Number());
     }
 
     if (new_elms != array->elements()) {
       array->set_elements(new_elms);
     }
 
@@ skipping 1257 matching lines @@
   return Handle<Code>(code_address);                        \
 }
 BUILTIN_LIST_C(DEFINE_BUILTIN_ACCESSOR_C)
 BUILTIN_LIST_A(DEFINE_BUILTIN_ACCESSOR_A)
 BUILTIN_LIST_DEBUG_A(DEFINE_BUILTIN_ACCESSOR_A)
 #undef DEFINE_BUILTIN_ACCESSOR_C
 #undef DEFINE_BUILTIN_ACCESSOR_A
 
 
 } }  // namespace v8::internal