Use separate output channels for language server and extension

When I start a Java project, there are two output channels created:

1. "Language Support for Java"
2. "Language Support for Java (Syntax Server)

They both seem to collect output from whichever language server the extension starts. Since we can either have the "syntax server" or the "standard server" running, I'm not quite sure what we have two different channels. If we're mixing output from the extension itself with the output from the language server, I would not expect two different channels. If we have a separate channel for the extensions, I would expect only the relevant language server output channel to be created.

Inizia individuando dove l’estensione crea i canali di output "Language Support for Java" e "Language Support for Java (Syntax Server)", quindi confronta i percorsi di avvio del server standard e del server di sintassi. Il lavoro è completato quando l’output dell’estensione è separato correttamente e viene creato solo il canale del language server pertinente; verifica il comportamento avviando un progetto Java con ciascun server.