Revert of Remove obsolete V8_INFINITY macro.

Revert of Remove obsolete V8_INFINITY macro. (patchset #3 id:40001 of https://codereview.chromium.org/798413003/)

Reason for revert:
Speculative revert. This seems to block the current roll: https://codereview.chromium.org/819653003/

I retried several times, also with a new roll. The error is internal - but that doesn't make much of a difference.

Original issue's description:
> Remove obsolete V8_INFINITY macro.
>
> Use std::numeric_limits consistently.
>
> R=svenpanne@chromium.org
>
> Committed: https://crrev.com/31c66e2d53569c4e229d55483d28208491e73612
> Cr-Commit-Position: refs/heads/master@{#25897}

TBR=svenpanne@chromium.org,bmeurer@chromium.org
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/7d478d96211d0c8ce5cbe1b9cb2e8720314811a0
Cr-Commit-Position: refs/heads/master@{#25912}

[Michael Achenbach, 2014-12-20 13:11:34]

Created Revert of Remove obsolete V8_INFINITY macro.

[commit-bot: I haz the power, 2014-12-20 13:11:58]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/813813003/1

[commit-bot: I haz the power, 2014-12-20 13:12:11]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2014-12-20 13:12:12]

Failed to apply patch for src/mips/code-stubs-mips.cc:
While running git apply --index -3 -p1;
  error: patch failed: src/mips/code-stubs-mips.cc:857
  Falling back to three-way merge...
  Applied patch to 'src/mips/code-stubs-mips.cc' with conflicts.
  U src/mips/code-stubs-mips.cc

Patch:       src/mips/code-stubs-mips.cc
Index: src/mips/code-stubs-mips.cc
diff --git a/src/mips/code-stubs-mips.cc b/src/mips/code-stubs-mips.cc
index
6d7892d5c3f3434f1803981264d09f39a3e70729..97eed7470725f5ab2c1cb194ab78da0e25dfabaa
100644
--- a/src/mips/code-stubs-mips.cc
+++ b/src/mips/code-stubs-mips.cc
@@ -1,8 +1,6 @@
 // Copyright 2012 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"
 
@@ -857,7 +855,7 @@
       // double_scratch can be overwritten in the delay slot.
       // Calculates square root of base.  Check for the special case of
       // Math.pow(-Infinity, 0.5) == Infinity (ECMA spec, 15.8.2.13).
-      __ Move(double_scratch, std::numeric_limits<double>::infinity());
+      __ Move(double_scratch, static_cast<double>(-V8_INFINITY));
       __ BranchF(USE_DELAY_SLOT, &done, NULL, eq, double_base, double_scratch);
       __ neg_d(double_result, double_scratch);
 
@@ -877,7 +875,7 @@
       // double_scratch can be overwritten in the delay slot.
       // Calculates square root of base.  Check for the special case of
       // Math.pow(-Infinity, -0.5) == 0 (ECMA spec, 15.8.2.13).
-      __ Move(double_scratch, std::numeric_limits<double>::infinity());
+      __ Move(double_scratch, static_cast<double>(-V8_INFINITY));
       __ BranchF(USE_DELAY_SLOT, &done, NULL, eq, double_base, double_scratch);
       __ Move(double_result, kDoubleRegZero);

[Michael Achenbach, 2014-12-20 13:16:46]

The CQ bit was checked by machenbach@chromium.org

[commit-bot: I haz the power, 2014-12-20 13:17:08]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/813813003/1

[commit-bot: I haz the power, 2014-12-20 13:17:28]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-20 13:17:42]

Patchset 1 (id:??) landed as
https://crrev.com/7d478d96211d0c8ce5cbe1b9cb2e8720314811a0
Cr-Commit-Position: refs/heads/master@{#25912}