import java.lang.ref.*

fun notNull(r: WeakReference<String>) {
    r.get()
        // SUCCESS
        // ORIGINAL:    fun get(): T? defined in java.lang.ref.WeakReference
        // SUBSTITUTED: fun get(): String? defined in java.lang.ref.WeakReference
}

fun nullable(r: WeakReference<String?>) {
    r.get()
        // SUCCESS
        // ORIGINAL:    fun get(): T? defined in java.lang.ref.WeakReference
        // SUBSTITUTED: fun get(): String? defined in java.lang.ref.WeakReference
}

fun platform() {
    val r = WeakReference("x")
    r.get()
        // SUCCESS
        // ORIGINAL:    fun get(): T? defined in java.lang.ref.WeakReference
        // SUBSTITUTED: fun get(): String? defined in java.lang.ref.WeakReference
}