Revert of Remove obsolete V8_INFINITY macro.

src/ppc/lithium-codegen-ppc.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 <limits>
-
 #include "src/v8.h"
 
 #include "src/base/bits.h"
 #include "src/code-factory.h"
 #include "src/code-stubs.h"
 #include "src/hydrogen-osr.h"
 #include "src/ic/ic.h"
 #include "src/ic/stub-cache.h"
 #include "src/ppc/lithium-codegen-ppc.h"
 #include "src/ppc/lithium-gap-resolver-ppc.h"
@@ skipping 4014 matching lines @@
 void LCodeGen::DoMathPowHalf(LMathPowHalf* instr) {
   DoubleRegister input = ToDoubleRegister(instr->value());
   DoubleRegister result = ToDoubleRegister(instr->result());
   DoubleRegister temp = double_scratch0();
 
   // Note that according to ECMA-262 15.8.2.13:
   // Math.pow(-Infinity, 0.5) == Infinity
   // Math.sqrt(-Infinity) == NaN
   Label skip, done;
 
-  __ LoadDoubleLiteral(temp, -std::numeric_limits<double>::infinity(),
-                       scratch0());
+  __ LoadDoubleLiteral(temp, -V8_INFINITY, scratch0());
   __ fcmpu(input, temp);
   __ bne(&skip);
   __ fneg(result, temp);
   __ b(&done);
 
   // Add +0 to convert -0 to +0.
   __ bind(&skip);
   __ fadd(result, input, kDoubleRegZero);
   __ fsqrt(result, result);
   __ bind(&done);
@@ skipping 2077 matching lines @@
   __ Push(scope_info);
   __ push(ToRegister(instr->function()));
   CallRuntime(Runtime::kPushBlockContext, 2, instr);
   RecordSafepoint(Safepoint::kNoLazyDeopt);
 }
 
 
 #undef __
 }
 }  // namespace v8::internal