[dds/dap] Enable verbose logging for flaky test

Trying to track down the failure shown here, but haven't had any luck reproducing it locally or on the trybots:

https://dart-ci.appspot.com/log/pkg-linux-release/unittest-asserts-release-linux-x64/28665/pkg/dds/test/dap/integration/debug_exceptions_test


Change-Id: Ied27b69324a602a4039eedfe997c604f6212f5b0
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/390221
Reviewed-by: Ben Konyi <bkonyi@google.com>
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Derek Xu <derekx@google.com>

pkg/dds/test/dap/integration/debug_exceptions_test.dart

diff --git a/pkg/dds/test/dap/integration/debug_exceptions_test.dart b/pkg/dds/test/dap/integration/debug_exceptions_test.dart
index 1e7c968..7e3f728 100644
--- a/pkg/dds/test/dap/integration/debug_exceptions_test.dart
+++ b/pkg/dds/test/dap/integration/debug_exceptions_test.dart
@@ -73,6 +73,20 @@
         exceptionPauseMode: 'All',
       );
     });
+    // These tests can be slow due to starting up the external server process.
+  }, timeout: Timeout.none);
+
+  group('debug mode (verbose)', () {
+    late DapTestSession dap;
+    setUp(() async {
+      dap = await DapTestSession.setUp(
+        // This boolean is temporarily set to `true` to aid debugging
+        // this test and will be reverted (and this additional group removed)
+        // soon.
+        forceVerboseLogging: true,
+      );
+    });
+    tearDown(() => dap.tearDown());
 
     test('parses line/column information from stack traces', () async {
       final client = dap.client;