Reenable vm tests with -cdartk DFE parser.

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 f17ae9a7c2f04abc5271cc8a405a041be7787ae5..c03fac2f76beeac201fbd45c26e9a8725e050ebb 100644
--- a/tools/testing/dart/test_configurations.dart
+++ b/tools/testing/dart/test_configurations.dart
@@ -179,7 +179,8 @@ Future testConfigurations(List<Configuration> configurations) async {
       for (var key in configuration.selectors.keys) {
         if (key == 'co19') {
           testSuites.add(new Co19TestSuite(configuration));
-        } else if (configuration.compiler == Compiler.none &&
+        } else if ((configuration.compiler == Compiler.none ||
+                configuration.compiler == Compiler.dartk) &&
             configuration.runtime == Runtime.vm &&
             key == 'vm') {
           // vm tests contain both cc tests (added here) and dart tests (added