deprecate the dart:core Math class

corelib/src/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.
 
 // Dart core library.
 
+/**
+ * *Note:* This class is **deprecated**, and will be removed soon.
+ * Please use the [dart:math] library instead.
+ */
 class Math {
   /**
    * Base of the natural logarithms.
    */
   static final double E = 2.718281828459045;
 
   /**
    * Natural logarithm of 10.
    */
   static final double LN10 =  2.302585092994046;
@@ skipping 134 matching lines @@
   static double sin(num x) => MathNatives.sin(x);
   static double cos(num x) => MathNatives.cos(x);
   static double tan(num x) => MathNatives.tan(x);
   static double acos(num x) => MathNatives.acos(x);
   static double asin(num x) => MathNatives.asin(x);
   static double atan(num x) => MathNatives.atan(x);
   static double sqrt(num x) => MathNatives.sqrt(x);
   static double exp(num x) => MathNatives.exp(x);
   static double log(num x) => MathNatives.log(x);
 }