Ship ES6 Math functions.

test/mjsunit/es6/math-fround.js

 // 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.
 
-// Flags: --harmony-maths
-
 // Monkey-patch Float32Array.
 Float32Array = function(x) { this[0] = 0; };
 
 assertTrue(isNaN(Math.fround(NaN)));
 assertTrue(isNaN(Math.fround(function() {})));
 assertTrue(isNaN(Math.fround({ toString: function() { return NaN; } })));
 assertTrue(isNaN(Math.fround({ valueOf: function() { return "abc"; } })));
 assertEquals("Infinity", String(1/Math.fround(0)));
 assertEquals("-Infinity", String(1/Math.fround(-0)));
 assertEquals("Infinity", String(Math.fround(Infinity)));
@@ skipping 73 matching lines @@
       assertEquals(float.toSingle(), Math.fround(float.toDouble()));
     }
   }
 }
 
 for (var sign = 0; sign < 2; sign++) {
   for (var exp = 1024 - 170; exp < 1024 + 170; exp++) {
     fuzz_mantissa(sign, exp, 1337 * exp - sign, 127913 * exp - sign);
   }
 }