Enable "Trigger Parameter Hints" for available method/constructor overloads

Prerequisites

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Summary

Today, available method/constructor overloads are shown when you get to the method body or an open parens

However, if you are already in a closed parens and want to see the available method/constructor overloads, this is not available, you have to delete the closed parens and retype them to get the prompt again.

Proposed Design

The C# extension wires up to Trigger Parameter Hints when in the method/constructor parameter body, we should do the same.

Inizia individuando la gestione esistente dei suggerimenti dei parametri di metodi/costruttori nella VS Code PowerShell extension e confrontala con il collegamento della C# extension a Trigger Parameter Hints. Verifica il comportamento all’interno di un elenco di parametri chiuso, in cui dovrebbero comparire gli overload disponibili senza eliminare e riscrivere la parentesi chiusa.