Revert "Emit declarations for typedefs that are needed by reflection."

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

Index: sdk/lib/_internal/compiler/implementation/enqueue.dart
diff --git a/sdk/lib/_internal/compiler/implementation/enqueue.dart b/sdk/lib/_internal/compiler/implementation/enqueue.dart
index 3ce91e9c1d768069bb01fbf2e1926dd28198bcb7..eff52a963ce4d627bbbe0cf6e210b79d5689c973 100644
--- a/sdk/lib/_internal/compiler/implementation/enqueue.dart
+++ b/sdk/lib/_internal/compiler/implementation/enqueue.dart
@@ -320,13 +320,11 @@ abstract class Enqueuer {
   /// needed for reflection.
   void enqueueReflectiveMember(Element element, bool enclosingWasIncluded) {
     if (shouldIncludeElementDueToMirrors(element,
-            includedEnclosing: enclosingWasIncluded)) {
+            includedEnclosing: enclosingWasIncluded)
+        // Do not enqueue typedefs.
+        && !element.impliesType) {
       logEnqueueReflectiveAction(element);
-      if (element.isTypedef) {
-        TypedefElement typedef = element;
-        typedef.ensureResolved(compiler);
-        compiler.world.allTypedefs.add(element);
-      } else if (Elements.isStaticOrTopLevel(element)) {
+      if (Elements.isStaticOrTopLevel(element)) {
         registerStaticUse(element.declaration);
       } else if (element.isInstanceMember) {
         // We need to enqueue all members matching this one in subclasses, as