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

test/cctest/compiler/codegen-tester.cc

 // Copyright 2014 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 "test/cctest/cctest.h"
 #include "test/cctest/compiler/codegen-tester.h"
 #include "test/cctest/compiler/value-helper.h"
 
@@ skipping 123 matching lines @@
   CHECK_EQ(false, wUint32LessThanOrEqual.Int32Compare(85539, 85537));
   CHECK_EQ(false, wUint32LessThanOrEqual.Int32Compare(-130, -170));
   CHECK_EQ(false, wUint32LessThanOrEqual.Int32Compare(0xffffffff, 0xfffffffe));
   CHECK_EQ(false, wUint32LessThanOrEqual.Int32Compare(-2997, 0));
 
   CompareWrapper wFloat64Equal(IrOpcode::kFloat64Equal);
   CompareWrapper wFloat64LessThan(IrOpcode::kFloat64LessThan);
   CompareWrapper wFloat64LessThanOrEqual(IrOpcode::kFloat64LessThanOrEqual);
 
   // Check NaN handling.
-  double nan = v8::base::OS::nan_value();
+  double nan = std::numeric_limits<double>::quiet_NaN();
   double inf = V8_INFINITY;
   CHECK_EQ(false, wFloat64Equal.Float64Compare(nan, 0.0));
   CHECK_EQ(false, wFloat64Equal.Float64Compare(nan, 1.0));
   CHECK_EQ(false, wFloat64Equal.Float64Compare(nan, inf));
   CHECK_EQ(false, wFloat64Equal.Float64Compare(nan, -inf));
   CHECK_EQ(false, wFloat64Equal.Float64Compare(nan, nan));
 
   CHECK_EQ(false, wFloat64Equal.Float64Compare(0.0, nan));
   CHECK_EQ(false, wFloat64Equal.Float64Compare(1.0, nan));
   CHECK_EQ(false, wFloat64Equal.Float64Compare(inf, nan));
@@ skipping 412 matching lines @@
   {
     RawMachineAssemblerTester<int32_t> m;
     Float64BinopTester bt(&m);
     bt.AddReturn(bt.param1);
 
     FOR_FLOAT64_INPUTS(i) { CHECK_EQ(*i, bt.call(-11.25, *i)); }
   }
 }
 
 #endif  // V8_TURBOFAN_TARGET