// RUN: rm -rf %t && mkdir %t
// RUN: %build-clang-importer-objc-overlays

// RUN: %target-swift-frontend %clang-importer-sdk-nosource -I %t %s -emit-ir
// REQUIRES: executable_test
// REQUIRES: OS=macosx
// REQUIRES: objc_interop

// Test that we don't crash when producing IR.

import AppKit
class MyView: NSView {
    func drawRect() {
        var x = self.superview
        var l = self.layer
        self.layer = CALayer()
        self.nextKeyView = nil
        subviews = []
    }    
}
var m = MyView()
m.drawRect()