Define call errors

bakatrouble · bakatrouble · commit f910dbed1bd1 · 2019-02-06T21:34:31.000+03:00
diff --git a/compiler/error/source/400_BAD_REQUEST.tsv b/compiler/error/source/400_BAD_REQUEST.tsv
@@ -87,4 +87,6 @@ MESSAGE_POLL_CLOSED	You can't interact with a closed poll
 MEDIA_INVALID	The media is invalid
 BOT_SCORE_NOT_MODIFIED	The bot score was not modified
 USER_BOT_REQUIRED	The method can be used by bots only
-IMAGE_PROCESS_FAILED	The server failed to process your image
+IMAGE_PROCESS_FAILED	The server failed to process your image
+CALL_ALREADY_ACCEPTED	The call is already accepted
+CALL_ALREADY_DECLINED	The call is already declined
