[K/N][IR] Fixed a problem with top-level fields

#KT-65324 Fixed

kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/SpecialBackendChecksTraversal.kt

@@ -336,7 +336,7 @@ private class BackendChecker(
     }
 
     override fun visitField(declaration: IrField) {
-        declaration.acceptChildrenVoid(this)
+        super.visitField(declaration)
         if (declaration.isFakeOverride) return // Can't happen now, just trying to be future-proof here.
 
         val parent = declaration.parent