Insert empty lines after functions and properties (KT-4002)

#KT-4002 Fixed

idea/testData/quickfix/createFromUsage/createFunction/get/afterCreateGetFromUsage12.kt

@@ -4,6 +4,7 @@ class Foo<T> {
         throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
 }
+
 fun <T> x (y: Foo<List<T>>, w: java.util.ArrayList<T>) {
     val z = y["", w]
 }