Harmony: move math features to es-staging.

test/mjsunit/harmony/math-cbrt.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
-
-assertTrue(isNaN(Math.cbrt(NaN)));
-assertTrue(isNaN(Math.cbrt(function() {})));
-assertTrue(isNaN(Math.cbrt({ toString: function() { return NaN; } })));
-assertTrue(isNaN(Math.cbrt({ valueOf: function() { return "abc"; } })));
-assertEquals("Infinity", String(1/Math.cbrt(0)));
-assertEquals("-Infinity", String(1/Math.cbrt(-0)));
-assertEquals("Infinity", String(Math.cbrt(Infinity)));
-assertEquals("-Infinity", String(Math.cbrt(-Infinity)));
-
-for (var i = 1E-100; i < 1E100; i *= Math.PI) {
-  assertEqualsDelta(i, Math.cbrt(i*i*i), i * 1E-15);
-}
-
-for (var i = -1E-100; i > -1E100; i *= Math.E) {
-  assertEqualsDelta(i, Math.cbrt(i*i*i), -i * 1E-15);
-}
-
-// Let's be exact at least for small integers.
-for (var i = 2; i < 10000; i++) {
-  assertEquals(i, Math.cbrt(i*i*i));
-}