Revert of Remove obsolete V8_INFINITY macro.

test/unittests/compiler/js-builtin-reducer-unittest.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/compiler/js-builtin-reducer.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-properties-inl.h"
 #include "src/compiler/typer.h"
 #include "test/unittests/compiler/graph-unittest.h"
 #include "test/unittests/compiler/node-test-utils.h"
 #include "testing/gmock-support.h"
 
 using testing::Capture;
 
@@ skipping 110 matching lines @@
 TEST_F(JSBuiltinReducerTest, MathMax0) {
   Handle<JSFunction> f = MathFunction("max");
 
   Node* fun = HeapConstant(Unique<HeapObject>::CreateUninitialized(f));
   Node* call =
       graph()->NewNode(javascript()->CallFunction(2, NO_CALL_FUNCTION_FLAGS),
                        fun, UndefinedConstant());
   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));
 }
 
 
 TEST_F(JSBuiltinReducerTest, MathMax1) {
   Handle<JSFunction> f = MathFunction("max");
 
   TRACED_FOREACH(Type*, t0, kNumberTypes) {
     Node* p0 = Parameter(t0, 0);
     Node* fun = HeapConstant(Unique<HeapObject>::CreateUninitialized(f));
     Node* call =
@@ skipping 151 matching lines @@
         graph()->NewNode(javascript()->CallFunction(3, NO_CALL_FUNCTION_FLAGS),
                          fun, UndefinedConstant(), p0);
     Reduction r = Reduce(call, MachineOperatorBuilder::Flag::kNoFlags);
 
     ASSERT_FALSE(r.Changed());
   }
 }
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8