kotlin/compiler/testData/loadJava/compiledJava/sam/Comparator.fir.txt

<T> public abstract interface Comparator : R|java/lang/Object| {
    public abstract operator function compare(o1: R|ft<T, T?>|!, o2: R|ft<T, T?>|!): R|kotlin/Int|

    public abstract operator function equals(obj: R|ft<kotlin/Any, kotlin/Any?>|!): R|kotlin/Boolean|

}