Quick Info in VS Code is not displaying type arguments in some cases

[RikkiGibson]

Version Used: C# Dev Kit extension v1.17.4, C# extension v2.64.7, VS Code v1.97.2

Steps to Reproduce:

1. Open QuickInfoUtilities.CreateQuickInfoItemAsync in VS Code
2. Hover on var in var groups

Repro is kinda meta 😅

Expected Behavior:

Quick info includes full type argument info, e.g. TValue is ImmutableArray<TaggedText>

Actual Behavior:

Quick info is missing the type arguments of generic type arguments, e.g. it only shows TValue is ImmutableArray