Verify that user classes/interfaces do not extend/implement any of bool, num,

tests/language/src/BlackListedTest.dart

Index: tests/language/src/BlackListedTest.dart
===================================================================
--- tests/language/src/BlackListedTest.dart	(revision 918)
+++ tests/language/src/BlackListedTest.dart	(working copy)
@@ -30,5 +30,9 @@
 class MyFunction implements Function {}        /// 11: compile-time error
 interface MyFunctionInterface extends Function {}  /// 12: compile-time error
 
+// Dynamic.
+class MyDynamic implements Dynamic {}            /// 13: compile-time error
+interface MyDynamicInterface extends Dynamic {}  /// 14: compile-time error
+
 main() {
 }