update testdata for https://github.com/JetBrains/kotlin/pull/896/

idea/testData/quickfix/implement/nested.kt.after

@@ -1,4 +1,5 @@
 // "Implement interface" "true"
+// WITH_RUNTIME
 // SHOULD_BE_AVAILABLE_AFTER_EXECUTION
 
 class Container {
@@ -19,7 +20,7 @@ class BaseImpl : Container.Base {
         get() = throw UnsupportedOperationException()
 
     override fun bar(z: Int): String {
-        throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
+        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
 }