kotlin/compiler/testData/diagnostics/tests/extensions/GenericIterator2.kt

import java.util.Enumeration

fun <T> java.util.Enumeration<T>.iterator() = object : Iterator<T> {
  public override fun hasNext(): Boolean = hasMoreElements()

  public override fun next() = nextElement()
}

fun a(e : java.util.Enumeration<Int>) {
    for (i in e) {
        i : Int
    }
}