Queue standard test suites before co19

tools/testing/dart/test_configurations.dart

Index: tools/testing/dart/test_configurations.dart
diff --git a/tools/testing/dart/test_configurations.dart b/tools/testing/dart/test_configurations.dart
index f8cd209ab16234d45a9c4520304dc603e8ffa91c..384bfb0d00fce99289742106663169a4f84b7cfc 100644
--- a/tools/testing/dart/test_configurations.dart
+++ b/tools/testing/dart/test_configurations.dart
@@ -183,6 +183,13 @@ Future testConfigurations(List<Map> configurations) async {
       var suite_path = new Path(conf['suite_dir']);
       testSuites.add(new PKGTestSuite(conf, suite_path));
     } else {
+      for (final testSuiteDir in TEST_SUITE_DIRECTORIES) {
+        final name = testSuiteDir.filename;
+        if (selectors.containsKey(name)) {
+          testSuites
+              .add(new StandardTestSuite.forDirectory(conf, testSuiteDir));
+        }
+      }
       for (String key in selectors.keys) {
         if (key == 'co19') {
           testSuites.add(new Co19TestSuite(conf));
@@ -214,14 +221,6 @@ Future testConfigurations(List<Map> configurations) async {
               new PkgBuildTestSuite(conf, 'pkgbuild', 'pkg/pkgbuild.status'));
         }
       }
-
-      for (final testSuiteDir in TEST_SUITE_DIRECTORIES) {
-        final name = testSuiteDir.filename;
-        if (selectors.containsKey(name)) {
-          testSuites
-              .add(new StandardTestSuite.forDirectory(conf, testSuiteDir));
-        }
-      }
     }
   }