Implement Abstract Member: Navigate to the generated declaration

#KT-12290 Fixed
(cherry picked from commit 6274c6b)

idea/testData/intentions/implementAbstractMember/function/enumEntriesWithArgs.kt.after

@@ -11,9 +11,9 @@ enum class E(n: Int) {
         }
     }, C(3) {
         override fun foo(x: Int): Int {
-            throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.
+            <caret><selection>throw UnsupportedOperationException("not implemented") //To change body of created functions use File | Settings | File Templates.</selection>
         }
     };
 
-    abstract fun <caret>foo(x: Int): Int
+    abstract fun foo(x: Int): Int
 }