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

#KT-11807 Fixed

idea/idea-completion/testData/handlers/basic/override/ImplementFunction.kt.after

@@ -4,7 +4,7 @@ interface I {
 
 class A : I {
     override fun foo(p: Int) {
-        <caret><selection>throw UnsupportedOperationException()</selection>
+        throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
 }
 

idea/idea-completion/testData/handlers/multifile/smart/AnonymousObjectGenericJava.kt.after

@@ -1,7 +1,7 @@
 fun<T> f(){
     JavaClass<T>(object: Comparator<T> {
         override fun compare(var1: T, var2: T): Int {
-            throw UnsupportedOperationException()
+            throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
         }
     })
 }

idea/idea-completion/testData/handlers/smart/AnonymousObject3.kt.after

@@ -1,6 +1,6 @@
 var r : Runnable = object: Runnable {
     override fun run() {
-        <caret><selection>throw UnsupportedOperationException()</selection>
+        throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
 }
 

idea/idea-completion/testData/handlers/smart/AnonymousObjectInsertsImport.kt.after

@@ -2,7 +2,7 @@ import java.io.Closeable
 
 val c: java.io.Closeable = object: Closeable {
     override fun close() {
-        throw UnsupportedOperationException()
+        throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
 }
 

idea/idea-completion/testData/handlers/smart/ConstructorForGenericType2.kt.after

@@ -3,7 +3,7 @@ fun registerHandler(handler: Handler<out Message>) {}
 fun test() {
     registerHandler(object: Handler<Message> {
         override fun handle(e: Message) {
-            <caret><selection>throw UnsupportedOperationException()</selection>
+            throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
         }
     })
 }