title: App crashes when I create a NSDictionary with integer as Object
body: <p>Always when I try to set an integer as Object in a NSDictionary the program crashes without a message (nothing in the console). What is wrong in this code? :</p>
  
  <pre><code>NSString *string = @"foo";
  int number = 1;
  
  NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys:
                          string, @"bla1", number, @"bla2",nil];
  </code></pre>