[K/N] KT-58562: Implement frontend checkers for HiddenFromObjC on classes

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

@@ -596,36 +596,9 @@ private class BackendChecker(
         if (declaration.isKotlinObjCClass()) {
             checkKotlinObjCClass(declaration)
         }
-        checkHiddenFromObjCRestrictions(declaration)
         super.visitClass(declaration)
 
     }
-
-    private fun IrClass.isHiddenFromObjC(): Boolean {
-        return annotations.any { annotationCall ->
-            val annotationClass = annotationCall.symbol.owner.parentAsClass
-            annotationClass.annotations.hasAnnotation(KonanFqNames.hidesFromObjC)
-        }
-    }
-
-    private fun checkHiddenFromObjCRestrictions(declaration: IrClass) {
-        // If declaration itself. is marked as hidden, we don't need to do anything
-        if (declaration.isHiddenFromObjC()) return
-        // Enum entries inherit from their classes, so if enum class is marked as hidden, there is no need to
-        // produce additional errors.
-        if (declaration.kind == ClassKind.ENUM_ENTRY) return
-        // Private and local classes does not leak to Objective-C API surface, so it is OK for them
-        // to inherit from hidden types.
-        if (DescriptorVisibilities.isPrivate(declaration.visibility) || declaration.isLocal) return
-        if (declaration.superClass?.isHiddenFromObjC() == true) {
-            reportError(declaration, "Only @HiddenFromObjC declaration can inherit from class annotated with @HiddenFromObjC")
-        }
-        declaration.getSuperInterfaces().forEach {
-            if (it.isHiddenFromObjC()) {
-                reportError(declaration, "Only @HiddenFromObjC declaration can implement interface annotated with @HiddenFromObjC")
-            }
-        }
-    }
 }
 
 private fun BackendChecker.checkCanGenerateCCall(expression: IrCall, isInvoke: Boolean) {