Fix O# integration tests by not blocking activation on server start

Author: dibarbet

src/omnisharp/omnisharpLanguageServer.ts

@@ -310,7 +310,10 @@ async function activate(
     );
 
     if (omnisharpOptions.autoStart) {
-        await server.autoStart(context.workspaceState.get<string>('lastSolutionPathOrFolder', ''));
+        // We intentionally do not await this as we don't want to block activation on the server starting.
+        server.autoStart(context.workspaceState.get<string>('lastSolutionPathOrFolder', '')).catch((err) => {
+            throw err;
+        });
     }
 
     // stop server on deactivate

test/omnisharp/omnisharpIntegrationTests/integrationHelpers.ts

@@ -57,8 +57,8 @@ export async function restartOmniSharpServer(): Promise<void> {
                     resolve();
                 }
             });
+            vscode.commands.executeCommand('o.restart');
         });
-        await vscode.commands.executeCommand('o.restart');
         console.log('OmniSharp restarted');
     } catch (err) {
         console.log(JSON.stringify(err));