text: var $ = require('../internals/export');
  var fails = require('../internals/fails');
  
  var nativeImul = Math.imul;
  
  var FORCED = fails(function () {
    return nativeImul(0xFFFFFFFF, 5) != -5 || nativeImul.length != 2;
  });
  
  // `Math.imul` method
  // https://tc39.github.io/ecma262/#sec-math.imul
  // some WebKit versions fails with big numbers, some has wrong arity
  $({ target: 'Math', stat: true, forced: FORCED }, {
    imul: function imul(x, y) {
      var UINT16 = 0xFFFF;
      var xn = +x;
      var yn = +y;
      var xl = UINT16 & xn;
      var yl = UINT16 & yn;
      return 0 | xl * yl + ((UINT16 & xn >>> 16) * yl + xl * (UINT16 & yn >>> 16) << 16 >>> 0);
    }
  });
  