Add a new kind of suite to ease test.dart integration.

pkg/testing/lib/src/suite.dart

Index: pkg/testing/lib/src/suite.dart
diff --git a/pkg/testing/lib/src/suite.dart b/pkg/testing/lib/src/suite.dart
index 8cbcc85cc48187b48bfeaae97187cb8ada27712a..e8007b2d889e4ab7d3aafb8c3b35ed0d36973629 100644
--- a/pkg/testing/lib/src/suite.dart
+++ b/pkg/testing/lib/src/suite.dart
@@ -7,6 +7,9 @@ library testing.suite;
 import 'chain.dart' show
     Chain;
 
+import 'test_dart.dart' show
+    TestDart;
+
 /// Records the properties of a test suite.
 abstract class Suite {
   final String name;
@@ -27,6 +30,9 @@ abstract class Suite {
       case "chain":
         return new Chain.fromJsonMap(base, json, name, kind);
 
+      case "test_dart":
+        return new TestDart.fromJsonMap(base, json, name, kind);
+
       default:
         throw "Suite '$name' has unknown kind '$kind'.";
     }