Add static assert for array size.

GitOrigin-RevId: 1f044bd3c05346316d27c7ae0462a2b0d575168a

td/telegram/MessageEntity.cpp

@@ -26,6 +26,7 @@ namespace td {
 
 int MessageEntity::get_type_priority(Type type) {
   static const int types[] = {50, 50, 50, 50, 50, 90, 91, 20, 11, 10, 49, 49, 50, 50, 92, 93, 0, 50};
+  static_assert(sizeof(types) / sizeof(types[0]) == static_cast<size_t>(MessageEntity::Type::Size), "");
   return types[static_cast<int32>(type)];
 }
 

td/telegram/MessageEntity.h

@@ -47,7 +47,8 @@ class MessageEntity {
     Underline,
     Strikethrough,
     BlockQuote,
-    BankCardNumber
+    BankCardNumber,
+    Size
   };
   Type type;
   int32 offset;