Fix some GCC 4.9 compilation errors.

td/telegram/MessageInputReplyTo.cpp

@@ -107,7 +107,7 @@ telegram_api::object_ptr<telegram_api::InputReplyTo> MessageInputReplyTo::get_in
       flags, reply_to_message_id.get_server_message_id().get(), top_thread_message_id.get_server_message_id().get(),
       std::move(input_peer), string(), Auto(), 0);
   quote_.update_input_reply_to_message(td, result.get());
-  return result;
+  return std::move(result);
 }
 
 // only for draft messages

td/telegram/net/DcOptionsSet.h

@@ -88,7 +88,11 @@ class DcOptionsSet {
 
   struct DcOptionId {
     size_t pos = 0;
-    auto as_tie() const {
+
+    explicit DcOptionId(size_t pos) : pos(pos) {
+    }
+
+    size_t as_tie() const {
       return pos;
     }
     bool operator==(const DcOptionId &other) const {