Microsoft.CodeAnalysis.CSharp.SignatureHelp.GenericNameSignatureHelpProvider.TryGetGenericIdentifier(Microsoft.CodeAnalysis.SyntaxNode, System.Int32, Microsoft.CodeAnalysis.LanguageService.ISyntaxFactsService, Microsoft.CodeAnalysis.SignatureHelp.SignatureHelpTriggerReason, System.Threading.CancellationToken, out Microsoft.CodeAnalysis.SyntaxToken, out Microsoft.CodeAnalysis.SyntaxToken)