[K/N] Adjust moved special backend checks tests

^KT-61564

compiler/testData/diagnostics/nativeTests/specialBackendChecks/objCInterop/t33.kt

@@ -1,10 +1,14 @@
+// FIR_IDENTICAL
+// WITH_PLATFORM_LIBS
 import kotlinx.cinterop.*
 import platform.darwin.*
 import platform.Foundation.*
 
 class Zzz : NSString {
+    @OptIn(kotlinx.cinterop.BetaInteropApi::class)
     @OverrideInit
     constructor(coder: NSCoder) { }
 
+    @Suppress("OVERRIDE_DEPRECATION")
     override fun initWithCoder(coder: NSCoder): String? = "zzz"
 }