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

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

@@ -1,4 +1,5 @@
 // "Implement interface" "true"
+// WITH_RUNTIME
 // SHOULD_BE_AVAILABLE_AFTER_EXECUTION
 
 interface Base {
@@ -9,6 +10,6 @@ interface Base {
 
 class BaseImpl : Base {
     override fun foo(x: Int): Int {
-        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.
     }
 }