Emit declarations for typedefs that are needed by reflection.

sdk/lib/_internal/compiler/implementation/resolution/members.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of resolution;
 
 abstract class TreeElements {
   Element get currentElement;
   Setlet<Node> get superUses;
 
@@ skipping 1260 matching lines @@
       return measure(() => SignatureResolver.analyze(
           compiler, node.parameters, node.returnType, element,
           new ResolutionRegistry(compiler, element),
           defaultValuesError: defaultValuesError,
           createRealParameters: true));
     });
   }
 
   TreeElements resolveTypedef(TypedefElementX element) {
     if (element.isResolved) return element.treeElements;
+    compiler.world.allTypedefs.add(element);
     return _resolveTypeDeclaration(element, () {
       ResolutionRegistry registry = new ResolutionRegistry(compiler, element);
       return compiler.withCurrentElement(element, () {
         return measure(() {
           assert(element.resolutionState == STATE_NOT_STARTED);
           element.resolutionState = STATE_STARTED;
           Typedef node =
             compiler.parser.measure(() => element.parseNode(compiler));
           TypedefResolverVisitor visitor =
             new TypedefResolverVisitor(compiler, element, registry);
@@ skipping 3537 matching lines @@
 }
 
 /// The result for the resolution of the `assert` method.
 class AssertResult implements ResolutionResult {
   const AssertResult();
 
   Element get element => null;
 
   String toString() => 'AssertResult()';
 }