Remove support for Javascript warnings in the VM.

runtime/lib/math_patch.dart

 // Copyright (c) 2012, 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.
 
 import "dart:typed_data";
 
 // A VM patch of the dart:math library.
 
 // If [x] is an [int] and [exponent] is a non-negative [int], the result is
 // an [int], otherwise the result is a [double].
@@ skipping 98 matching lines @@
   // http://en.wikipedia.org/wiki/Multiply-with-carry
   // The constant A is selected from "Numerical Recipes 3rd Edition" p.348 B1.
 
   // Implements:
   //   var state =
   //       ((_A * (_state[_kSTATE_LO])) + _state[_kSTATE_HI]) & ((1 << 64) - 1);
   //   _state[_kSTATE_LO] = state & ((1 << 32) - 1);
   //   _state[_kSTATE_HI] = state >> 32;
   // This is a native to prevent 64-bit operations in Dart, which
   // fail with --throw_on_javascript_int_overflow.
+  // TODO(regis): Implement in Dart and remove Random_nextState in math.cc.
   void _nextState() native "Random_nextState";
 
   int nextInt(int max) {
     const limit = 0x3FFFFFFF;
     if ((max <= 0) || ((max > limit) && (max > _POW2_32))) {
       throw new RangeError.range(max, 1, _POW2_32, "max",
                                  "Must be positive and <= 2^32");
     }
     if ((max & -max) == max) {
       // Fast case for powers of two.
@@ skipping 22 matching lines @@
   // Constants used by the algorithm.
   static const _POW2_32 = 1 << 32;
   static const _POW2_53_D = 1.0 * (1 << 53);
   static const _POW2_27_D = 1.0 * (1 << 27);
 
   static const _A = 0xffffda61;
 
   // Use a singleton Random object to get a new seed if no seed was passed.
   static var _prng = new _Random._withState(_initialSeed());
 
+

[srdjan, 2016/02/10 23:35:20]

One line too much

[regis, 2016/02/10 23:42:40]

Done.

   // This is a native to prevent 64-bit operations in Dart, which
   // fail with --throw_on_javascript_int_overflow.
+  // TODO(regis): Implement here in Dart and remove native in math.cc.
   static Uint32List _setupSeed(int seed) native "Random_setupSeed";
   // Get a seed from the VM's random number provider.
   static Uint32List _initialSeed() native "Random_initialSeed";
 
   static int _nextSeed() {
     // Trigger the PRNG once to change the internal state.
     _prng._nextState();
     return _prng._state[_kSTATE_LO];
   }
 }
@@ skipping 30 matching lines @@
 
   bool nextBool() {
     return _getBytes(1).isEven;
   }
 
   // Constants used by the algorithm.
   static const _POW2_32 = 1 << 32;
   static const _POW2_53_D = 1.0 * (1 << 53);
 }