35127134: setNeedsUpdateOfHomeIndicatorAutoHidden not implemented in iOS 11

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Description

Area:
UIKit

Summary:

Calls to setNeedsUpdateOfHomeIndicatorAutoHidden result in doesNotRecognizeSelector crash.

The crash only occurs in iOS 11 as the call is wrapped within an #available scope:

override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    
    if #available(iOS 11, *) {
        setNeedsUpdateOfHomeIndicatorAutoHidden()   // crash on iOS 11 with doesNotRecognizeSelector
    }
    
    setNeedsStatusBarAppearanceUpdate()
}

This works, but we shouldn't need to make the additional "responds" check:

    if #available(iOS 11, *) {
        if responds(to: #selector(setNeedsUpdateOfHomeIndicatorAutoHidden)) {
            setNeedsUpdateOfHomeIndicatorAutoHidden()
        }
    }

Steps to Reproduce:

1. Subclass UIViewController.
2. Call setNeedsUpdateOfHomeIndicatorAutoHidden in viewDidAppear within an #available scope.

Expected Results:

No crash.

Actual Results:

Crash.

Version/Build:

Xcode 9.0.1. Swift 4.0

Product Version: Xcode 9.0.1 (9A1004)
Created: 2017-10-26T18:20:39.280030
Originated: 2017-10-23T00:00:00
Open Radar Link: http://www.openradar.me/35127134