Fixed tests after adding error checking for intention tests.

idea/testData/intentions/declarations/convertMemberToExtension/varWithGetter.kt.after

@@ -1,10 +1,11 @@
+// ERROR: Property must be initialized
 class Owner {
 }
 
 var Owner.p: Int
-    get {
+    get() {
         return 1
     }
     set(value) {
         <caret><selection>throw UnsupportedOperationException()</selection>
-    }
+    }