Support reflection on generics with dynamic types.

tests/lib/mirrors/generics_test.dart

Index: tests/lib/mirrors/generics_test.dart
diff --git a/tests/lib/mirrors/generics_test.dart b/tests/lib/mirrors/generics_test.dart
index 085dc37d233e8238423d5c5c86b9082fd351bcf7..ef6d3b06ef3218c2826c1c6832f6348eeec7d059 100644
--- a/tests/lib/mirrors/generics_test.dart
+++ b/tests/lib/mirrors/generics_test.dart
@@ -79,7 +79,7 @@ main() {
   var numMirror = reflectClass(num);
   var dynamicMirror = currentMirrorSystem().dynamicType;
   typeArguments(reflect(new A<num>()).type, [numMirror]);
-  typeArguments(reflect(new A<dynamic>()).type, [dynamicMirror]); /// 01: ok
+  typeArguments(reflect(new A<dynamic>()).type, [dynamicMirror]);
   typeArguments(reflect(new A()).type, [dynamicMirror]); /// 01: ok
   typeArguments(reflect(new B()).type, []);
   typeArguments(reflect(new C()).type, []);