Use signaling NaN for holes in fixed double arrays.

src/serialize.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
 #include "src/api.h"
 #include "src/base/platform/platform.h"
 #include "src/bootstrapper.h"
@@ skipping 145 matching lines @@
   Add(ExternalReference::address_of_negative_infinity().address(),
       "LDoubleConstant::negative_infinity");
   Add(ExternalReference::power_double_double_function(isolate).address(),
       "power_double_double_function");
   Add(ExternalReference::power_double_int_function(isolate).address(),
       "power_double_int_function");
   Add(ExternalReference::math_log_double_function(isolate).address(),
       "std::log");
   Add(ExternalReference::store_buffer_top(isolate).address(),
       "store_buffer_top");
-  Add(ExternalReference::address_of_canonical_non_hole_nan().address(),
-      "canonical_nan");
   Add(ExternalReference::address_of_the_hole_nan().address(), "the_hole_nan");
   Add(ExternalReference::get_date_field_function(isolate).address(),
       "JSDate::GetField");
   Add(ExternalReference::date_cache_stamp(isolate).address(),
       "date_cache_stamp");
   Add(ExternalReference::address_of_pending_message_obj(isolate).address(),
       "address_of_pending_message_obj");
   Add(ExternalReference::address_of_has_pending_message(isolate).address(),
       "address_of_has_pending_message");
   Add(ExternalReference::address_of_pending_message_script(isolate).address(),
@@ skipping 2372 matching lines @@
   return GetHeaderValue(kNumInternalizedStringsOffset);
 }
 
 Vector<const uint32_t> SerializedCodeData::CodeStubKeys() const {
   int reservations_size = GetHeaderValue(kReservationsOffset) * kInt32Size;
   const byte* start = data_ + kHeaderSize + reservations_size;
   return Vector<const uint32_t>(reinterpret_cast<const uint32_t*>(start),
                                 GetHeaderValue(kNumCodeStubKeysOffset));
 }
 } }  // namespace v8::internal