title: Scala equality with type checking?
body: <p>Is there a uniform method to perform equality with type checking?
  Unfortunately </p>
  
  <pre><code>val objectA:String = "test"
  val objectB:Int = 2
  objectA == objectB
  </code></pre>
  
  <p>the equality operator == doesn't complain if objectB is a Int while objectA is a String.
  I would need an operator like === that perform type checking as well (and I hope it is uniform to all scala obj). Does such operator exist? </p>