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

test/cctest/test-assembler-x87.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 211 matching lines @@
       desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
 #ifdef OBJECT_PRINT
   OFStream os(stdout);
   code->Print(os);
 #endif
 
   F7 f = FUNCTION_CAST<F7>(code->entry());
   CHECK_EQ(kLess, f(1.1, 2.2));
   CHECK_EQ(kEqual, f(2.2, 2.2));
   CHECK_EQ(kGreater, f(3.3, 2.2));
-  CHECK_EQ(kNaN, f(v8::base::OS::nan_value(), 1.1));
+  CHECK_EQ(kNaN, f(std::numeric_limits<double>::quiet_NaN(), 1.1));
 }
 
 
 TEST(AssemblerIa3210) {
   // Test chaining of label usages within instructions (issue 1644).
   CcTest::InitializeVM();
   Isolate* isolate = reinterpret_cast<Isolate*>(CcTest::isolate());
   HandleScope scope(isolate);
   Assembler assm(isolate, NULL, 0);
 
@@ skipping 63 matching lines @@
       desc, Code::ComputeFlags(Code::STUB), Handle<Code>());
   CHECK(code->IsCode());
 
   F0 f = FUNCTION_CAST<F0>(code->entry());
   int res = f();
   CHECK_EQ(42, res);
 }
 
 
 #undef __