An Adapter of Kotlin native GarbageCollector for iOS project

iosMain_GC.kt

import kotlin.native.internal.GC as internalGC

/**
 * https://github.com/JetBrains/kotlin/blob/1.5.30/kotlin-native/runtime/src/main/kotlin/kotlin/native/internal/GC.kt
 */
object GC {

    var threshold: Int
        get() = internalGC.threshold
        set(value) { internalGC.threshold = value }

    var collectCyclesThreshold: Long
        get() = internalGC.collectCyclesThreshold
        set(value) { internalGC.collectCyclesThreshold = value }

    var thresholdAllocations: Long
        get() = internalGC.thresholdAllocations
        set(value) { internalGC.thresholdAllocations = value }

    var autotune: Boolean
        get() = internalGC.autotune
        set(value) { internalGC.autotune = value }

    // Causes Exception because no implementations
    // new MM: https://github.com/JetBrains/kotlin/blob/1.5.30/kotlin-native/runtime/src/mm/cpp/Memory.cpp
    // legacy MM: https://github.com/JetBrains/kotlin/blob/1.5.30/kotlin-native/runtime/src/legacymm/cpp/Memory.cpp
    var cyclicCollectorEnabled: Boolean
        get() = internalGC.cyclicCollectorEnabled
        set(value) { internalGC.cyclicCollectorEnabled = value }

    fun detectCycles(): Array<Any>? = internalGC.detectCycles()

    fun collect() = internalGC.collect()

    // Causes ThrowIllegalArgumentException
    // new MM: https://github.com/JetBrains/kotlin/blob/1.5.30/kotlin-native/runtime/src/mm/cpp/Memory.cpp#L273-L276
    // legacy MM: https://github.com/JetBrains/kotlin/blob/1.5.30/kotlin-native/runtime/src/legacymm/cpp/Memory.cpp#L3470-L3477
    fun collectCyclic() = internalGC.collectCyclic()
}