kotlin-fork/compiler/testData/diagnostics/tests/operatorsOverloading/until/custom.kt

// FIR_IDENTICAL
// !LANGUAGE: +RangeUntilOperator

class A {
    operator fun rangeUntil(other: A): Iterable<A> = TODO()
}

fun main(n: A, f: A) {
    for (i in f..<n) {

    }
}