Revert of Remove obsolete V8_INFINITY macro.

test/unittests/compiler/js-builtin-reducer-unittest.cc

Index: test/unittests/compiler/js-builtin-reducer-unittest.cc
diff --git a/test/unittests/compiler/js-builtin-reducer-unittest.cc b/test/unittests/compiler/js-builtin-reducer-unittest.cc
index 8c6a4d9a3851e3f40e0048e837c713342a4ae503..0747f0c876abacbef9285946971d63bfa312e148 100644
--- a/test/unittests/compiler/js-builtin-reducer-unittest.cc
+++ b/test/unittests/compiler/js-builtin-reducer-unittest.cc
@@ -1,8 +1,6 @@
 // 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/compiler/js-builtin-reducer.h"
 #include "src/compiler/js-graph.h"
@@ -134,8 +132,7 @@
   Reduction r = Reduce(call);
 
   ASSERT_TRUE(r.Changed());
-  EXPECT_THAT(r.replacement(),
-              IsNumberConstant(-std::numeric_limits<double>::infinity()));
+  EXPECT_THAT(r.replacement(), IsNumberConstant(-V8_INFINITY));
 }