Pass client name properly

src/VisualStudio/Core/Def/Implementation/LanguageClient/AbstractLiveShareLanguageServerClient.cs

@@ -20,6 +20,7 @@ namespace Microsoft.VisualStudio.LanguageServices.Implementation.LanguageService
 {
     internal abstract class AbstractLiveShareLanguageServerClient : ILanguageClient
     {
+        private readonly string? _diagnosticsClientName;
         private readonly IDiagnosticService _diagnosticService;
         private readonly LanguageServerProtocol _languageServerProtocol;
         private readonly Workspace _workspace;
@@ -56,11 +57,13 @@ internal abstract class AbstractLiveShareLanguageServerClient : ILanguageClient
         /// </summary>
         public event AsyncEventHandler<EventArgs>? StopAsync { add { } remove { } }
 
-        public AbstractLiveShareLanguageServerClient(LanguageServerProtocol languageServerProtocol, VisualStudioWorkspace workspace, IDiagnosticService diagnosticService)
+        public AbstractLiveShareLanguageServerClient(LanguageServerProtocol languageServerProtocol, VisualStudioWorkspace workspace,
+            IDiagnosticService diagnosticService, string? diagnosticsClientName)
         {
             _languageServerProtocol = languageServerProtocol;
             _workspace = workspace;
             _diagnosticService = diagnosticService;
+            _diagnosticsClientName = diagnosticsClientName;
         }
 
         public Task<Connection> ActivateAsync(CancellationToken token)
@@ -68,7 +71,7 @@ public Task<Connection> ActivateAsync(CancellationToken token)
             Contract.ThrowIfFalse(_languageServer == null, "This language server has already been initialized");
 
             var (clientStream, serverStream) = FullDuplexStream.CreatePair();
-            _languageServer = new InProcLanguageServer(serverStream, serverStream, _languageServerProtocol, _workspace, _diagnosticService, clientName: null);
+            _languageServer = new InProcLanguageServer(serverStream, serverStream, _languageServerProtocol, _workspace, _diagnosticService, clientName: _diagnosticsClientName);
             return Task.FromResult(new Connection(clientStream, clientStream));
         }
 

src/VisualStudio/Core/Def/Implementation/LanguageClient/LiveShareLanguageServerClient.cs

@@ -23,7 +23,7 @@ internal class LiveShareLanguageServerClient : AbstractLiveShareLanguageServerCl
         [ImportingConstructor]
         [Obsolete(MefConstruction.ImportingConstructorMessage, true)]
         public LiveShareLanguageServerClient(LanguageServerProtocol languageServerProtocol, VisualStudioWorkspace workspace, IDiagnosticService diagnosticService)
-            : base(languageServerProtocol, workspace, diagnosticService)
+            : base(languageServerProtocol, workspace, diagnosticService, diagnosticsClientName: null)
         {
         }
 

src/VisualStudio/Core/Def/Implementation/LanguageClient/RazorLanguageClient.cs

@@ -37,7 +37,7 @@ internal class RazorLanguageClient : AbstractLiveShareLanguageServerClient
 
         [ImportingConstructor]
         public RazorLanguageClient(LanguageServerProtocol languageServerProtocol, VisualStudioWorkspace workspace, IDiagnosticService diagnosticService)
-            : base(languageServerProtocol, workspace, diagnosticService)
+            : base(languageServerProtocol, workspace, diagnosticService, ClientName)
         {
         }
     }