[KT-52681] Remove unnecessary semicolon after Objective-C @end

Objective-c `@end` doesn't need a semicolon, however KMM exported header
file, for instance:
```
__attribute__((swift_name("KotlinIterator")))
@protocol MyProjectKotlinIterator
@required
- (BOOL)hasNext __attribute__((swift_name("hasNext()")));
- (id _Nullable)next __attribute__((swift_name("next()")));
@end;
```
This creates problems with some code checkers that will not expect it
there, so it seems best to remove it.

kotlin-native/runtime/src/main/cpp/ObjCExportErrors.mm

@@ -139,13 +139,13 @@ extern "C" OBJ_GETTER(Kotlin_ObjCExport_NSErrorAsException, id error) {
 }
 
 @interface NSError (NSErrorKotlinException)
-@end;
+@end
 
 @implementation NSError (NSErrorKotlinException)
 -(id)kotlinException {
   auto userInfo = self.userInfo;
   return userInfo == nullptr ? nullptr : userInfo[@"KotlinException"];
 }
-@end;
+@end
 
 #endif

kotlin-native/runtime/src/main/cpp/ObjCExportPrivate.h

@@ -16,7 +16,7 @@
 
 @interface KotlinBase : NSObject <NSCopying>
 +(instancetype)createRetainedWrapper:(ObjHeader*)obj;
-@end;
+@end
 
 enum class ReleaseMode {
     kRelease,

kotlin-native/runtime/src/main/cpp/ObjCInterop.mm

@@ -61,7 +61,7 @@ struct KotlinObjCClassData {
 @protocol HasKotlinObjCClassData
 @required
 -(void*)_kotlinObjCClassData;
-@end;
+@end
 
 static inline struct KotlinObjCClassData* GetKotlinClassData(id objOrClass) {
   void* ptr = [(id<HasKotlinObjCClassData>)objOrClass _kotlinObjCClassData];

kotlin-native/runtime/src/objc/cpp/ObjCExportClasses.mm

@@ -28,7 +28,7 @@
 @interface NSObject (NSObjectPrivateMethods)
 // Implemented for NSObject in libobjc/NSObject.mm
 -(BOOL)_tryRetain;
-@end;
+@end
 
 static void injectToRuntime();
 
@@ -167,10 +167,10 @@ static void injectToRuntime();
   return [self retain];
 }
 
-@end;
+@end
 
 @interface NSObject (NSObjectToKotlin)
-@end;
+@end
 
 @implementation NSObject (NSObjectToKotlin)
 -(ObjHeader*)toKotlin:(ObjHeader**)OBJ_RESULT {
@@ -182,16 +182,16 @@ static void injectToRuntime();
     return;
   objc_release(self);
 }
-@end;
+@end
 
 @interface NSString (NSStringToKotlin)
-@end;
+@end
 
 @implementation NSString (NSStringToKotlin)
 -(ObjHeader*)toKotlin:(ObjHeader**)OBJ_RESULT {
   RETURN_RESULT_OF(Kotlin_Interop_CreateKStringFromNSString, self);
 }
-@end;
+@end
 
 extern "C" {
 
@@ -209,7 +209,7 @@ OBJ_GETTER(Kotlin_boxDouble, KDouble value);
 }
 
 @interface NSNumber (NSNumberToKotlin)
-@end;
+@end
 
 @implementation NSNumber (NSNumberToKotlin)
 -(ObjHeader*)toKotlin:(ObjHeader**)OBJ_RESULT {
@@ -232,17 +232,17 @@ OBJ_GETTER(Kotlin_boxDouble, KDouble value);
     default:  RETURN_RESULT_OF(Kotlin_ObjCExport_convertUnmappedObjCObject, self);
   }
 }
-@end;
+@end
 
 @interface NSDecimalNumber (NSDecimalNumberToKotlin)
-@end;
+@end
 
 @implementation NSDecimalNumber (NSDecimalNumberToKotlin)
 // Overrides [NSNumber toKotlin:] implementation.
 -(ObjHeader*)toKotlin:(ObjHeader**)OBJ_RESULT {
   RETURN_RESULT_OF(Kotlin_ObjCExport_convertUnmappedObjCObject, self);
 }
-@end;
+@end
 
 static void injectToRuntimeImpl() {
   // If the code below fails, then it is most likely caused by KT-42254.

kotlin-native/runtime/src/objc/cpp/ObjCExportCollections.mm

@@ -86,7 +86,7 @@ static inline KInt objCIndexToKotlinOrThrow(NSUInteger index) {
 // when they are either frozen or if they are called on the worker that created them.
 
 @interface NSArray (NSArrayToKotlin)
-@end;
+@end
 
 @implementation NSArray (NSArrayToKotlin)
 -(KRef)toKotlin:(KRef*)OBJ_RESULT {
@@ -98,10 +98,10 @@ static inline KInt objCIndexToKotlinOrThrow(NSUInteger index) {
     return;
   objc_release(self);
 }
-@end;
+@end
 
 @interface NSMutableArray (NSMutableArrayToKotlin)
-@end;
+@end
 
 @implementation NSMutableArray (NSArrayToKotlin)
 -(KRef)toKotlin:(KRef*)OBJ_RESULT {
@@ -113,11 +113,11 @@ static inline KInt objCIndexToKotlinOrThrow(NSUInteger index) {
     return;
   objc_release(self);
 }
-@end;
+@end
 
 
 @interface NSSet (NSSetToKotlin)
-@end;
+@end
 
 @implementation NSSet (NSSetToKotlin)
 -(KRef)toKotlin:(KRef*)OBJ_RESULT {
@@ -130,10 +130,10 @@ static inline KInt objCIndexToKotlinOrThrow(NSUInteger index) {
   objc_release(self);
 }
 
-@end;
+@end
 
 @interface NSDictionary (NSDictionaryToKotlin)
-@end;
+@end
 
 @implementation NSDictionary (NSDictionaryToKotlin)
 -(KRef)toKotlin:(KRef*)OBJ_RESULT {
@@ -146,10 +146,10 @@ static inline KInt objCIndexToKotlinOrThrow(NSUInteger index) {
   objc_release(self);
 }
 
-@end;
+@end
 
 @interface KIteratorAsNSEnumerator : NSEnumerator
-@end;
+@end
 
 @implementation KIteratorAsNSEnumerator {
   KRefSharedHolder iteratorHolder;
@@ -176,10 +176,10 @@ static inline KInt objCIndexToKotlinOrThrow(NSUInteger index) {
     return nullptr;
   }
 }
-@end;
+@end
 
 @interface KListAsNSArray : NSArray
-@end;
+@end
 
 @implementation KListAsNSArray {
   KRefSharedHolder listHolder;
@@ -212,10 +212,10 @@ static inline KInt objCIndexToKotlinOrThrow(NSUInteger index) {
   return Kotlin_Collection_getSize(listHolder.ref<ErrorPolicy::kTerminate>());
 }
 
-@end;
+@end
 
 @interface KMutableListAsNSMutableArray : NSMutableArray
-@end;
+@end
 
 @implementation KMutableListAsNSMutableArray {
   KRefSharedHolder listHolder;
@@ -278,10 +278,10 @@ static inline KInt objCIndexToKotlinOrThrow(NSUInteger index) {
   Kotlin_MutableList_setObject(listHolder.ref<ErrorPolicy::kTerminate>(), objCIndexToKotlinOrThrow(index), kotlinObject);
 }
 
-@end;
+@end
 
 @interface KSetAsNSSet : NSSet
-@end;
+@end
 
 static inline id KSet_getElement(KRef set, id object) {
   if (object == NSNull.null) {
@@ -338,10 +338,10 @@ static inline id KSet_getElement(KRef set, id object) {
   ObjHolder holder;
   return [KIteratorAsNSEnumerator createWithKIterator:Kotlin_Set_iterator(setHolder.ref<ErrorPolicy::kTerminate>(), holder.slot())];
 }
-@end;
+@end
 
 @interface KotlinMutableSet : NSMutableSet
-@end;
+@end
 
 @implementation KotlinMutableSet {
   KRefSharedHolder setHolder;
@@ -440,10 +440,10 @@ static inline id KSet_getElement(KRef set, id object) {
   ObjHolder holder;
   Kotlin_MutableCollection_removeObject(setHolder.ref<ErrorPolicy::kTerminate>(), refFromObjCOrNSNull(object, holder.slot()));
 }
-@end;
+@end
 
 @interface KMapAsNSDictionary : NSDictionary
-@end;
+@end
 
 static inline id KMap_get(KRef map, id aKey) {
   ObjHolder keyHolder, valueHolder;
@@ -497,10 +497,10 @@ static inline id KMap_get(KRef map, id aKey) {
   return [KIteratorAsNSEnumerator createWithKIterator:Kotlin_Map_keyIterator(mapHolder.ref<ErrorPolicy::kTerminate>(), holder.slot())];
 }
 
-@end;
+@end
 
 @interface KotlinMutableDictionary : NSMutableDictionary
-@end;
+@end
 
 @implementation KotlinMutableDictionary {
   KRefSharedHolder mapHolder;
@@ -593,10 +593,10 @@ static inline id KMap_get(KRef map, id aKey) {
   Kotlin_MutableMap_remove(mapHolder.ref<ErrorPolicy::kTerminate>(), kotlinKey);
 }
 
-@end;
+@end
 
 @interface NSEnumerator (NSEnumeratorAsAssociatedObject)
-@end;
+@end
 
 @implementation NSEnumerator (NSEnumeratorAsAssociatedObject)
 -(void)releaseAsAssociatedObject:(ReleaseMode)mode {
@@ -604,7 +604,7 @@ static inline id KMap_get(KRef map, id aKey) {
     return;
   objc_release(self);
 }
-@end;
+@end
 
 // Referenced from the generated code:
 

kotlin-native/runtime/src/objc/cpp/ObjCExportNumbers.mm

@@ -44,7 +44,7 @@ OBJ_GETTER(Kotlin_boxDouble, KDouble value);
 #pragma clang diagnostic ignored "-Wobjc-designated-initializers"
 
 @interface KotlinNumber : NSNumber
-@end;
+@end
 
 [[ noreturn ]] static void incorrectNumberInitialization(KotlinNumber* self, SEL _cmd) {
   [NSException raise:NSGenericException format:@"%@ can't be initialized with %s, use properly typed initialized",
@@ -94,7 +94,7 @@ OBJ_GETTER(Kotlin_boxDouble, KDouble value);
 + (NSNumber *)numberWithFloat:(float)value { incorrectNumberFactory(self, _cmd); }
 + (NSNumber *)numberWithDouble:(double)value { incorrectNumberFactory(self, _cmd); }
 
-@end;
+@end
 
 /*
 The code below is generated by:
@@ -116,7 +116,7 @@ fun main(args: Array<String>) {
 
 private fun genBoolean(): String = """
 @interface KotlinBoolean : KotlinNumber
-@end;
+@end
 
 @implementation KotlinBoolean {
   BOOL value_;
@@ -154,7 +154,7 @@ private fun genBoolean(): String = """
   RETURN_RESULT_OF(Kotlin_boxBoolean, value_);
 }
 
-@end;
+@end
 
 """.trimIndent()
 
@@ -165,7 +165,7 @@ private fun genInteger(
         kind: String = getNSNumberKind(cType)
 ) = """
 @interface Kotlin$name : KotlinNumber
-@end;
+@end
 
 @implementation Kotlin$name {
   $cType value_;
@@ -206,7 +206,7 @@ private fun genInteger(
   RETURN_RESULT_OF(Kotlin_box$name, value_);
 }
 
-@end;
+@end
 
 """.trimIndent()
 
@@ -220,7 +220,7 @@ private fun genFloating(
         kind: String = getNSNumberKind(cType)
 ): String = """
 @interface Kotlin$name : KotlinNumber
-@end;
+@end
 
 @implementation Kotlin$name {
   $cType value_;
@@ -268,7 +268,7 @@ ${if (cType != "double") """
   RETURN_RESULT_OF(Kotlin_box$name, value_);
 }
 
-@end;
+@end
 
 """.trimIndent()
 */
@@ -276,7 +276,7 @@ ${if (cType != "double") """
 // TODO: consider generating it by compiler.
 
 @interface KotlinBoolean : KotlinNumber
-@end;
+@end
 
 @implementation KotlinBoolean {
   BOOL value_;
@@ -314,10 +314,10 @@ ${if (cType != "double") """
   RETURN_RESULT_OF(Kotlin_boxBoolean, value_);
 }
 
-@end;
+@end
 
 @interface KotlinByte : KotlinNumber
-@end;
+@end
 
 @implementation KotlinByte {
   char value_;
@@ -358,10 +358,10 @@ ${if (cType != "double") """
   RETURN_RESULT_OF(Kotlin_boxByte, value_);
 }
 
-@end;
+@end
 
 @interface KotlinShort : KotlinNumber
-@end;
+@end
 
 @implementation KotlinShort {
   short value_;
@@ -402,10 +402,10 @@ ${if (cType != "double") """
   RETURN_RESULT_OF(Kotlin_boxShort, value_);
 }
 
-@end;
+@end
 
 @interface KotlinInt : KotlinNumber
-@end;
+@end
 
 @implementation KotlinInt {
   int value_;
@@ -446,10 +446,10 @@ ${if (cType != "double") """
   RETURN_RESULT_OF(Kotlin_boxInt, value_);
 }
 
-@end;
+@end
 
 @interface KotlinLong : KotlinNumber
-@end;
+@end
 
 @implementation KotlinLong {
   long long value_;
@@ -490,10 +490,10 @@ ${if (cType != "double") """
   RETURN_RESULT_OF(Kotlin_boxLong, value_);
 }
 
-@end;
+@end
 
 @interface KotlinUByte : KotlinNumber
-@end;
+@end
 
 @implementation KotlinUByte {
   unsigned char value_;
@@ -534,10 +534,10 @@ ${if (cType != "double") """
   RETURN_RESULT_OF(Kotlin_boxUByte, value_);
 }
 
-@end;
+@end
 
 @interface KotlinUShort : KotlinNumber
-@end;
+@end
 
 @implementation KotlinUShort {
   unsigned short value_;
@@ -578,10 +578,10 @@ ${if (cType != "double") """
   RETURN_RESULT_OF(Kotlin_boxUShort, value_);
 }
 
-@end;
+@end
 
 @interface KotlinUInt : KotlinNumber
-@end;
+@end
 
 @implementation KotlinUInt {
   unsigned int value_;
@@ -622,10 +622,10 @@ ${if (cType != "double") """
   RETURN_RESULT_OF(Kotlin_boxUInt, value_);
 }
 
-@end;
+@end
 
 @interface KotlinULong : KotlinNumber
-@end;
+@end
 
 @implementation KotlinULong {
   unsigned long long value_;
@@ -666,10 +666,10 @@ ${if (cType != "double") """
   RETURN_RESULT_OF(Kotlin_boxULong, value_);
 }
 
-@end;
+@end
 
 @interface KotlinFloat : KotlinNumber
-@end;
+@end
 
 @implementation KotlinFloat {
   float value_;
@@ -717,10 +717,10 @@ ${if (cType != "double") """
   RETURN_RESULT_OF(Kotlin_boxFloat, value_);
 }
 
-@end;
+@end
 
 @interface KotlinDouble : KotlinNumber
-@end;
+@end
 
 @implementation KotlinDouble {
   double value_;
@@ -761,6 +761,6 @@ ${if (cType != "double") """
   RETURN_RESULT_OF(Kotlin_boxDouble, value_);
 }
 
-@end;
+@end
 
 #endif // KONAN_OBJC_INTEROP

kotlin-native/runtime/src/objc/cpp/ObjCInteropUtilsClasses.mm

@@ -17,7 +17,7 @@
 @interface KotlinObjectHolder : NSObject
 -(id)initWithRef:(KRef)ref;
 -(KRef)ref;
-@end;
+@end
 
 @implementation KotlinObjectHolder {
   KRefSharedHolder refHolder;
@@ -39,7 +39,7 @@
   [super dealloc];
 }
 
-@end;
+@end
 
 static id Kotlin_Interop_createKotlinObjectHolder(KRef any) {
   if (any == nullptr) {
@@ -59,7 +59,7 @@ static KRef Kotlin_Interop_unwrapKotlinObjectHolder(id holder) {
 
 // Used as an associated object for ObjCWeakReferenceImpl.
 @interface KotlinObjCWeakReference : NSObject
-@end;
+@end
 
 // libobjc:
 extern "C" {
@@ -81,7 +81,7 @@ void objc_release(id obj);
   objc_release(self);
 }
 
-@end;
+@end
 
 extern "C" OBJ_GETTER(Kotlin_Interop_refFromObjC, id obj);