Reveal the issue

Author: sfodagain

source/channel.c

@@ -1005,7 +1005,7 @@ int aws_channel_slot_on_handler_shutdown_complete(
 }
 
 size_t aws_channel_slot_downstream_read_window(struct aws_channel_slot *slot) {
-    AWS_ASSERT(slot->adj_right);
+    AWS_FATAL_ASSERT(slot->adj_right);
     return slot->channel->read_back_pressure_enabled ? slot->adj_right->window_size : SIZE_MAX;
 }
 

source/channel_bootstrap.c

@@ -1583,6 +1583,8 @@ static void s_on_server_channel_on_setup_completed(struct aws_channel *channel,
              * when a TLS connection has been successfully established. At that point, we signal a successful TLS
              * handshake, which also makes the server name and protocol available (if provided).
              */
+            // FIXME A code path used in the tls_server_hangup_during_negotiation test needs a slot
+            //   set by s_setup_server_tls.
             s_tls_server_on_negotiation_result(socket_channel_handler, socket_slot, err_code, channel_data);
             return;
         }