Improve crash/hang support in helix (#24489)

Author: HaoK

eng/helix/content/RunTests/TestRunner.cs

@@ -247,7 +247,7 @@ public async Task<int> RunTestsAsync()
             {
                 // Timeout test run 5 minutes before the Helix job would timeout
                 var cts = new CancellationTokenSource(Options.Timeout.Subtract(TimeSpan.FromMinutes(5)));
-                var commonTestArgs = $"vstest {Options.Target} --logger:xunit --logger:\"console;verbosity=normal\" --blame";
+                var commonTestArgs = $"test {Options.Target} --logger:xunit --logger:\"console;verbosity=normal\" --blame \"CollectHangDump;TestTimeout=5m\"";                
                 if (Options.Quarantined)
                 {
                     Console.WriteLine("Running quarantined tests.");
@@ -331,6 +331,22 @@ public void UploadResults()
             {
                 Console.WriteLine("No logs found in artifacts/log");
             }
+            Console.WriteLine($"Copying TestResults/**/*.dmp to {HELIX_WORKITEM_UPLOAD_ROOT}/");
+            if (Directory.Exists("TestResults"))
+            {
+                foreach (var file in Directory.EnumerateFiles("TestResults", "*.dmp", SearchOption.AllDirectories))
+                {
+                    var fileName = Path.GetFileName(file);
+                    Console.WriteLine($"Copying: {file} to {Path.Combine(HELIX_WORKITEM_UPLOAD_ROOT, fileName)}");
+                    // Need to copy to HELIX_WORKITEM_UPLOAD_ROOT and HELIX_WORKITEM_UPLOAD_ROOT/../ in order for Azure Devops attachments to link properly and for Helix to store the logs
+                    File.Copy(file, Path.Combine(HELIX_WORKITEM_UPLOAD_ROOT, fileName));
+                    File.Copy(file, Path.Combine(HELIX_WORKITEM_UPLOAD_ROOT, "..", fileName));
+                }
+            }
+            else
+            {
+                Console.WriteLine("No dmps found in TestResults");
+            }            
         }
     }
 }