- Make UsingDirectiveStatementInfo.SortingComparer viably extensible by adjusting declaration modifiers
- UsingDirectiveStatementInfo
- UsingDirectiveKind
- VariableUsingsProvider
- FullSymbolName.ForType overloads
- IdentifierWithArity.WithTypeArguments*
- TypeExtensions.GetDeclaringMethodSafe
- ISymbolExtensions
- HasAttributeNamed(Fully)
- FirstOrDefaultAttributeNamed(Fully)
- GetAttributesNamed(Fully)
- GetSymbolType
- Moved UsingsProviderBase from RoseLynn.Testing to RoseLynn