class Foo() {
    fun Int.invoke() {}
}

fun bar(f: Foo, i: Int) {
    with (i) {
        f<caret>()
    }
}


Resolved call:

Resulting descriptor: fun Int.invoke(): Unit defined in Foo

Explicit receiver kind = DISPATCH_RECEIVER
Dispatch receiver = f {Foo}
Extension receiver = IntExt{fun Int.<anonymous>(): Unit defined in bar}