Override/Implement: Use function body template when generating functions with default body

#KT-11807 Fixed

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

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