- Make sure BoundedType and MixinAppType have a name.

runtime/lib/type_patch.dart

Index: runtime/lib/type_patch.dart
===================================================================
--- runtime/lib/type_patch.dart	(revision 23968)
+++ runtime/lib/type_patch.dart	(working copy)
@@ -16,3 +16,11 @@
 // Equivalent of RawTypeParameter.
 class _TypeParameter extends _AbstractType {
 }
+
+// Equivalent of RawBoundedType.
+class _BoundedType extends _AbstractType {
+}
+
+// Equivalent of RawMixinAppType.
+class _MixinAppType extends _AbstractType {
+}