indexOfOrNull on Array and List

Libraries
1

Hi,

i wonder if this is somehow planned to add such extension to Array and List like indexOfOrNull() similar to already existing fun String.indexOfOrNull

2

What?

3

Sorry i wasn’t precise. This fun String.indexOfOrNull I’ve found here kotlin/addToStdlib.kt at master · JetBrains/kotlin · GitHub.
But main point is to discuss adding such extensions like

public fun <@kotlin.internal.OnlyInputTypes T> Array<out T>.indexOfOrNull(element: T): Int? =
    indexOf(T).takeIf(it >= 0)
public fun <@kotlin.internal.OnlyInputTypes T> Iterable<T>.indexOfOrNull(element: T): Int? =
    indexOf(T).takeIf(it >= 0)