Implement testing support for "--compiler=none --runtime=dartium"

tests/co19/test_config.dart

Index: tests/co19/test_config.dart
diff --git a/tests/co19/test_config.dart b/tests/co19/test_config.dart
index 547ea88aa5d961fd2f40691b9e493d3ec1813f7e..d37b5fa5e1d9063f4cddecbaca7e5336785fabe0 100644
--- a/tests/co19/test_config.dart
+++ b/tests/co19/test_config.dart
@@ -20,7 +20,8 @@ class Co19TestSuite extends StandardTestSuite {
                "tests/co19/co19-analyzer2.status",
                "tests/co19/co19-runtime.status",
                "tests/co19/co19-dart2dart.status",
-               "tests/co19/co19-dart2js.status"]);
+               "tests/co19/co19-dart2js.status",
+               "tests/co19/co19-dartium.status"]);
 
   bool isTestFile(String filename) => _testRegExp.hasMatch(filename);
   bool get listRecursively => true;