Support unit test debugging options when attaching to unit test process

Author: dibarbet

src/lsptoolshost/roslynLanguageServer.ts

@@ -577,7 +577,13 @@ export class RoslynLanguageServer {
         client.onRequest<RoslynProtocol.DebugAttachParams, RoslynProtocol.DebugAttachResult, void>(
             RoslynProtocol.DebugAttachRequest.type,
             async (request) => {
+                let debugOptions: any = vscode.workspace.getConfiguration('csharp').get('unitTestDebuggingOptions');
+                if (typeof debugOptions !== 'object') {
+                    debugOptions = {};
+                }
+
                 const debugConfiguration: vscode.DebugConfiguration = {
+                    ...debugOptions,
                     name: '.NET Core Attach',
                     type: 'coreclr',
                     request: 'attach',