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

#KT-11807 Fixed

idea/testData/quickfix/override/implementMemberFromAbstractClass.kt.after

@@ -5,6 +5,6 @@ abstract class A {
 
 class B : A() {
     override fun foo() {
-        throw UnsupportedOperationException()
+        throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
 }