Fix tests: "infix modifier required" and "operator modifier required" errors

idea/testData/quickfix/createFromUsage/createFunction/component/createComponentFromUsage3.kt

@@ -1,16 +1,16 @@
 // "Create extension function 'component2'" "true"
 class FooIterator<T> {
-    fun hasNext(): Boolean { return false }
-    fun next(): Any {
+    operator fun hasNext(): Boolean { return false }
+    operator fun next(): Any {
         throw UnsupportedOperationException("not implemented")
     }
 }
 class Foo<T> {
-    fun iterator(): FooIterator<String> {
+    operator fun iterator(): FooIterator<String> {
         throw UnsupportedOperationException("not implemented")
     }
 }
-fun Any.component1(): Int {
+operator fun Any.component1(): Int {
     return 0
 }
 fun foo() {