[builtins] Introduce proper Float64Log1p operator.

test/unittests/unittests.gyp

 # 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.
 
 # Please keep this file in sync with BUILD.gn.
 
 {
   'variables': {
     'v8_code': 1,
   },
@@ skipping 13 matching lines @@
       'include_dirs': [
         '../..',
       ],
       'sources': [  ### gcmole(all) ###
         'base/atomic-utils-unittest.cc',
         'base/bits-unittest.cc',
         'base/cpu-unittest.cc',
         'base/division-by-constant-unittest.cc',
         'base/flags-unittest.cc',
         'base/functional-unittest.cc',
+        'base/ieee754-unittest.cc',

[Michael Achenbach, 2016/06/27 07:45:34]

Note: This unittest will stop running when we switch to GN if not specified in
BUILD.gn.

         'base/logging-unittest.cc',
         'base/iterator-unittest.cc',
         'base/platform/condition-variable-unittest.cc',
         'base/platform/mutex-unittest.cc',
         'base/platform/platform-unittest.cc',
         'base/platform/semaphore-unittest.cc',
         'base/platform/time-unittest.cc',
         'base/sys-info-unittest.cc',
         'base/utils/random-number-generator-unittest.cc',
         'cancelable-tasks-unittest.cc',
@@ skipping 176 matching lines @@
             '../../gypfiles/isolate.gypi',
           ],
           'sources': [
             'unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }