Remove deprecated v8::base::OS::nan_value().

test/cctest/test-utils.cc

 // 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 54 matching lines @@
   CHECK_EQ(1000000, FastD2IChecked(1000000.0));
 
   CHECK_EQ(-1000000, FastD2IChecked(-1000000.123));
   CHECK_EQ(-1, FastD2IChecked(-1.234));
   CHECK_EQ(0, FastD2IChecked(0.345));
   CHECK_EQ(1, FastD2IChecked(1.234));
   CHECK_EQ(1000000, FastD2IChecked(1000000.123));
 
   CHECK_EQ(INT_MAX, FastD2IChecked(1.0e100));
   CHECK_EQ(INT_MIN, FastD2IChecked(-1.0e100));
-  CHECK_EQ(INT_MIN, FastD2IChecked(v8::base::OS::nan_value()));
+  CHECK_EQ(INT_MIN, FastD2IChecked(std::numeric_limits<double>::quiet_NaN()));
 }
 
 
 TEST(BitSetComputer) {
   typedef BitSetComputer<bool, 1, kSmiValueSize, uint32_t> BoolComputer;
   CHECK_EQ(0, BoolComputer::word_count(0));
   CHECK_EQ(1, BoolComputer::word_count(8));
   CHECK_EQ(2, BoolComputer::word_count(50));
   CHECK_EQ(0, BoolComputer::index(0, 8));
   CHECK_EQ(100, BoolComputer::index(100, 8));
@@ skipping 202 matching lines @@
   vec.push_back(66);
   for (auto& i : vec) {
     ++i;
   }
   int j = 12;
   for (auto i : vec) {
     CHECK_EQ(j, i);
     j += 11;
   }
 }