[K/N] Add a trivial test-case for KT-40426

kotlin-native/backend.native/tests/build.gradle

@@ -5234,6 +5234,14 @@ if (PlatformInfo.isAppleTarget(project)) {
         useGoldenData = true
         UtilsKt.dependsOnPlatformLibs(it)
     }
+
+    standaloneTest("interop_kt40426") {
+        // Test depends on iOS-specific UIKit
+        enabled = (project.testTarget == 'ios_x64' || project.testTarget == 'ios_simulator_arm64' || project.testTarget == 'ios_arm64')
+        source = "interop/objc/kt40426/main.kt"
+        useGoldenData = true
+        UtilsKt.dependsOnPlatformLibs(it)
+    }
 }
 
 tasks.register("KT-50983", KonanDriverTest) {

kotlin-native/backend.native/tests/interop/objc/kt40426/main.kt

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2010-2023 JetBrains s.r.o. and Kotlin Programming Language contributors.
+ * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
+ */
+
+import kotlinx.cinterop.*
+import platform.UIKit.*
+import platform.CoreGraphics.*
+import platform.Foundation.NSString
+
+class SmileView(frame: CValue<CGRect>): UIView(frame = frame) {
+    override fun drawRect(rect: CValue<CGRect>) {
+        super.drawRect(rect)
+
+        val smile = ":)" as NSString
+        smile.drawInRect(rect, withAttributes = null)
+        println("SmileView::drawRect")
+    }
+
+    override fun layoutSubviews() {
+        super.layoutSubviews()
+        println("SmileView::layoutSubviews")
+    }
+}
+
+fun main() {
+    memScoped {
+        val frame = alloc<CGRect>()
+        val x = SmileView(frame.readValue())
+        x.drawRect(frame.readValue())
+        x.layoutSubviews()
+    }
+}

kotlin-native/backend.native/tests/interop/objc/kt40426/main.out

@@ -0,0 +1,2 @@
+SmileView::drawRect
+SmileView::layoutSubviews