title: How to unimport String "+" operator in Scala?
body: <p>I'm writing a DSL where the "+" operator is strictly numeric, like some other popular languages. It's close, but the String "+" operator is messing up my implicit conversions. What's the syntax for unimporting an operator of the String class?</p>
  
  <p>Just to be clearer, instead of this:</p>
  
  <pre>
  scala> var x = "2" + 3;
  x: java.lang.String = 23
  </pre>
  
  <p>I'd like to get x: Int = 5</p>
  
  <p>I imagine I just need 2 things to make that happen:</p>
  
  <ul>
  <li>Remove (unimport within my scope) the definition of "+" from Strings</li>
  <li>Define an implicit conversion of String to Int</li>
  </ul>
  
  <p>I'm stuck on the first step.</p>
  
  <p>Thanks</p>