Add regression tests.

test/kernel/regression/issue_000047.dart

Index: test/kernel/regression/issue_000047.dart
diff --git a/test/kernel/regression/issue_000032.dart b/test/kernel/regression/issue_000047.dart
similarity index 84%
copy from test/kernel/regression/issue_000032.dart
copy to test/kernel/regression/issue_000047.dart
index 21222e2f1945ca7b0341ba194d58dffa77566694..9fb1dc28c6b305cab1a6007e6d78e0408b705f78 100644
--- a/test/kernel/regression/issue_000032.dart
+++ b/test/kernel/regression/issue_000047.dart
@@ -2,10 +2,6 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE.md file.
 
-class C {
-  C<
-}
+typedef void T(C<C>);
 
-main() {
-  C<
-}
+T main() => null;