Preliminary support for reflecting on generic types.

dart/sdk/lib/_internal/compiler/implementation/lib/js_mirrors.dart

Index: dart/sdk/lib/_internal/compiler/implementation/lib/js_mirrors.dart
diff --git a/dart/sdk/lib/_internal/compiler/implementation/lib/js_mirrors.dart b/dart/sdk/lib/_internal/compiler/implementation/lib/js_mirrors.dart
index 202b255d7f94d068a47d20316bb091d15a6c89f8..db8d87ff9cf09d0e2658e562c1dda3c2fe7fd558 100644
--- a/dart/sdk/lib/_internal/compiler/implementation/lib/js_mirrors.dart
+++ b/dart/sdk/lib/_internal/compiler/implementation/lib/js_mirrors.dart
@@ -198,7 +198,9 @@ InstanceMirror reflect(Object reflectee) {
 
 final Expando<ClassMirror> classMirrors = new Expando<ClassMirror>();
 
-ClassMirror reflectType(Type key) => reflectClassByName(s('$key'));
+ClassMirror reflectType(Type key) {
+  return reflectClassByName(s('$key'.split('<')[0]));
+}
 
 ClassMirror reflectClassByName(Symbol symbol) {
   String className = n(symbol);