kotlin-fork/js/js.translator/testData/box/native/simpleUndefined.kt

// EXPECTED_REACHABLE_NODES: 1281
package foo

external interface MyAny
external val c: MyAny? = definedExternally

fun box(): String {
    if (c != null) return "fail1"
    return if (c == null) "OK" else "fail2"
}