[testing] Blacklist tests and repeat options from reproduction commands

Change-Id: Ibfb2c4542750b7cc52672c3e180adadd52bf0848
Reviewed-on: https://dart-review.googlesource.com/c/93500
Commit-Queue: Alexander Thomas <athom@google.com>
Commit-Queue: Jens Johansen <jensj@google.com>
Auto-Submit: Alexander Thomas <athom@google.com>
Reviewed-by: Jens Johansen <jensj@google.com>
diff --git a/tools/testing/dart/options.dart b/tools/testing/dart/options.dart
index 8593b59..306a433 100644
--- a/tools/testing/dart/options.dart
+++ b/tools/testing/dart/options.dart
@@ -344,6 +344,7 @@
     'local_ip',
     'output_directory',
     'progress',
+    'repeat',
     'report',
     'safari',
     'shard',
@@ -351,6 +352,7 @@
     'silent_failures',
     'step_name',
     'tasks',
+    'tests',
     'time',
     'verbose',
     'write_debug_log',