- Reverting mirror changes.

tests/lib/mirrors/generics_test.dart

Index: tests/lib/mirrors/generics_test.dart
===================================================================
--- tests/lib/mirrors/generics_test.dart	(revision 30028)
+++ tests/lib/mirrors/generics_test.dart	(working copy)
@@ -145,10 +145,11 @@
 
   // Library members are all uninstantaited generics or non-generics.
   currentMirrorSystem().libraries.values.forEach((libraryMirror) {
-    libraryMirror.declarations.values.forEach((declaration) {
-      if (declaration is ClassMirror) {
-        Expect.isTrue(declaration.isOriginalDeclaration);
-        Expect.equals(declaration, declaration.originalDeclaration);
+    libraryMirror.classes.values.forEach((classMirror) {
+      // Generic typedefs are considered in a separate test.
+      if (classMirror is! TypedefMirror) {
+        Expect.isTrue(classMirror.isOriginalDeclaration);
+        Expect.equals(classMirror, classMirror.originalDeclaration);
       }
     });
   });