Intial support for unifying command-line handling

pkg/analyzer/test/src/test_all.dart

Index: pkg/analyzer/test/src/test_all.dart
diff --git a/pkg/analyzer/test/src/test_all.dart b/pkg/analyzer/test/src/test_all.dart
index 41743e2d9370a2493c2ceb641b71dc3d6878afc6..8f727da407b80e9ea934937827dc0a324dde90ff 100644
--- a/pkg/analyzer/test/src/test_all.dart
+++ b/pkg/analyzer/test/src/test_all.dart
@@ -6,6 +6,7 @@ library analyzer.test.src.test_all;
 
 import 'package:test_reflective_loader/test_reflective_loader.dart';
 
+import 'command_line/test_all.dart' as command_line;
 import 'context/test_all.dart' as context;
 import 'dart/test_all.dart' as dart;
 import 'plugin/plugin_config_test.dart' as plugin;
@@ -17,6 +18,7 @@ import 'util/test_all.dart' as util;
 /// Utility for manually running all tests.
 main() {
   defineReflectiveSuite(() {
+    command_line.main();
     context.main();
     dart.main();
     plugin.main();