- Move MathNatives from dart:core to dart:math.

runtime/lib/math.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-class MathNatives {
-  static num pow(num value, num exponent) {
-    if (exponent is int) {
-      return value.pow(exponent);
-    }
-    // Double.pow will call exponent.toDouble().
-    return value.toDouble().pow(exponent);
-  }
-  static double random() => _random();
-  static double sqrt(num value) => _sqrt(value.toDouble());
-  static double sin(num value) => _sin(value.toDouble());
-  static double cos(num value) => _cos(value.toDouble());
-  static double tan(num value) => _tan(value.toDouble());
-  static double acos(num value) => _acos(value.toDouble());
-  static double asin(num value) => _asin(value.toDouble());
-  static double atan(num value) => _atan(value.toDouble());
-  static double atan2(num a, num b) => _atan2(a.toDouble(), b.toDouble());
-  static double exp(num value) => _exp(value.toDouble());
-  static double log(num value) => _log(value.toDouble());
-
-  static double _random() native "MathNatives_random";
-  static double _sqrt(double value) native "MathNatives_sqrt";
-  static double _sin(double value) native "MathNatives_sin";
-  static double _cos(double value) native "MathNatives_cos";
-  static double _tan(double value) native "MathNatives_tan";
-  static double _acos(double value) native "MathNatives_acos";
-  static double _asin(double value) native "MathNatives_asin";
-  static double _atan(double value) native "MathNatives_atan";
-  static double _atan2(double a, double b) native "MathNatives_atan2";
-  static double _exp(double value) native "MathNatives_exp";
-  static double _log(double value) native "MathNatives_log";
-}