public async Task<IActionResult> TypeLookup(TypeLookupRequest request)
        {
            var document = _workspace.GetDocument(request.FileName);
            var response = new TypeLookupResponse();
            if (document != null)
            {
                var semanticModel = await document.GetSemanticModelAsync();
                var sourceText = await document.GetTextAsync();
                var position = sourceText.Lines.GetPosition(new LinePosition(request.Line - 1, request.Column - 1));
                var symbol = SymbolFinder.FindSymbolAtPosition(semanticModel, position, _workspace);
                if (symbol != null)
                {
                    if(symbol.Kind == SymbolKind.NamedType)
                    {
                        response.Type = symbol.ContainingNamespace.ToDisplayString() + "." 
                                        + symbol.ToDisplayString(SymbolDisplayFormat.MinimallyQualifiedFormat);
                    }
                    else
                    {
                        response.Type = symbol.ToDisplayString(SymbolDisplayFormat.MinimallyQualifiedFormat);
                    }

                    if (request.IncludeDocumentation)
                    {
                        response.Documentation = symbol.GetDocumentationCommentXml();
                    }
                }
            }
            return new ObjectResult(response);
        }
        public async Task<TypeLookupResponse> TypeLookup(TypeLookupRequest request)
        {
            var document = _workspace.GetDocument(request.FileName);
            var response = new TypeLookupResponse();
            if (document != null)
            {
                var semanticModel = await document.GetSemanticModelAsync();
                var sourceText = await document.GetTextAsync();
                var position = sourceText.Lines.GetPosition(new LinePosition(request.Line - 1, request.Column - 1));
                var symbol = SymbolFinder.FindSymbolAtPosition(semanticModel, position, _workspace);
                if (symbol != null)
                {
                    //non regular C# code semantics (interactive, script) don't allow namespaces
                    if(document.SourceCodeKind == SourceCodeKind.Regular && symbol.Kind == SymbolKind.NamedType && !symbol.ContainingNamespace.IsGlobalNamespace)
                    {
                        response.Type = $"{symbol.ContainingNamespace.ToDisplayString()}.{symbol.ToDisplayString(SymbolDisplayFormat.MinimallyQualifiedFormat)}";
                    }
                    else
                    {
                        response.Type = symbol.ToDisplayString(SymbolDisplayFormat.MinimallyQualifiedFormat);
                    }

                    if (request.IncludeDocumentation)
                    {
                        response.Documentation = DocumentationConverter.ConvertDocumentation(symbol.GetDocumentationCommentXml(), _options.FormattingOptions.NewLine);
                    }
                }
            }
            return response;
        }