[K/N][runtime] Used internal isInstance

kotlin-native/runtime/src/mm/cpp/Memory.cpp

@@ -608,7 +608,7 @@ RUNTIME_NOTHROW extern "C" OBJ_GETTER(Konan_getWeakReferenceImpl, ObjHeader* ref
         RETURN_RESULT_OF(makePermanentWeakReferenceImpl, referred);
     }
 #if KONAN_OBJC_INTEROP
-    if (IsInstance(referred, theObjCObjectWrapperTypeInfo)) {
+    if (IsInstanceInternal(referred, theObjCObjectWrapperTypeInfo)) {
         RETURN_RESULT_OF(makeObjCWeakReferenceImpl, referred->GetAssociatedObject());
     }
 #endif // KONAN_OBJC_INTEROP