Build with .NET 7.0.200 + Async improvements (#1869)

global.json

@@ -1,6 +1,6 @@
 {
     "sdk": {
-        "version": "7.0.101",
+        "version": "7.0.200",
         "rollForward": "latestFeature"
     },
     "msbuild-sdks": {

src/Microsoft.Kusto.ServiceLayer/HostLoader.cs

@@ -52,7 +52,7 @@ namespace Microsoft.Kusto.ServiceLayer
                     // Start the service only after all request handlers are setup. This is vital
                     // as otherwise the Initialize event can be lost - it's processed and discarded before the handler
                     // is hooked up to receive the message
-                    serviceHost.Start().Wait();
+                    serviceHost.Start().GetAwaiter().GetResult();
                     isLoaded = true;
                 }
             }

src/Microsoft.SqlTools.Credentials/HostLoader.cs

@@ -34,7 +34,7 @@ namespace  Microsoft.SqlTools.Credentials.Utility
                     // Start the service only after all request handlers are setup. This is vital
                     // as otherwise the Initialize event can be lost - it's processed and discarded before the handler
                     // is hooked up to receive the message
-                    serviceHost.Start().Wait();
+                    serviceHost.Start().GetAwaiter().GetResult();
                     isLoaded = true;
                 }
             }

src/Microsoft.SqlTools.Hosting/Extensibility/ExtensionServiceHost.cs

@@ -38,7 +38,7 @@ namespace Microsoft.SqlTools.Extensibility
             // Start the service only after all request handlers are setup. This is vital
             // as otherwise the Initialize event can be lost - it's processed and discarded before the handler
             // is hooked up to receive the message
-            this.Start().Wait();
+            this.Start().GetAwaiter().GetResult();
             isLoaded = true;
 
         }

src/Microsoft.SqlTools.Hosting/Hosting/Protocol/MessageDispatcher.cs

@@ -353,7 +353,7 @@ namespace Microsoft.SqlTools.Hosting.Protocol
                 }
                 catch (Exception e)
                 {
-                    if (!(e is AggregateException && ((AggregateException)e).InnerExceptions[0] is TaskCanceledException))
+                    if (!(e is AggregateException exception && exception.InnerExceptions[0] is TaskCanceledException))
                     {
                         // Log the error but don't rethrow it to prevent any errors in the handler from crashing the service
                         Logger.Write(TraceEventType.Error, string.Format("An unexpected error occurred in the request handler: {0}", e.ToString()));

src/Microsoft.SqlTools.ResourceProvider/ResourceProviderHostLoader.cs

@@ -38,7 +38,7 @@ namespace Microsoft.SqlTools.ResourceProvider
                     // Start the service only after all request handlers are setup. This is vital
                     // as otherwise the Initialize event can be lost - it's processed and discarded before the handler
                     // is hooked up to receive the message
-                    serviceHost.Start().Wait();
+                    serviceHost.Start().GetAwaiter().GetResult();
                     isLoaded = true;
                 }
             }

src/Microsoft.SqlTools.ServiceLayer/HostLoader.cs

@@ -68,7 +68,7 @@ namespace Microsoft.SqlTools.ServiceLayer
                     // Start the service only after all request handlers are setup. This is vital
                     // as otherwise the Initialize event can be lost - it's processed and discarded before the handler
                     // is hooked up to receive the message
-                    serviceHost.Start().Wait();
+                    serviceHost.Start().GetAwaiter().GetResult();
                     isLoaded = true;
                 }
             }