title: use $scope of controller in filter?
body: <p>I declare $scope.something in my controller like</p>
  
  <pre><code>app.controller('MainControl', function($scope){
  $scope.something = 1;
  });
  </code></pre>
  
  <p>then how can I access it in my filter scope? like </p>
  
  <pre><code>app.filter("myCustomFilter", function () {
  // here
  });
  </code></pre>
  
  <p>obviously it doesn't work if I just $scope.something there.</p>