UFile (package = )
    UClass (name = ReceiverFunKt)
        UMethod (name = foo)
            UParameter (name = $this$foo)
            [!] UnknownKotlinExpression (DOT_QUALIFIED_EXPRESSION)
        UMethod (name = getRx)
            UParameter (name = $this$rx)
            [!] UnknownKotlinExpression (BLOCK)
    UClass (name = MyReceiverAnnotation)
        UMethod (name = name)
