Implement reflection on native classes.

dart/sdk/lib/_internal/compiler/implementation/js_backend/native_emitter.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 js_backend;
 
 class NativeEmitter {
 
   CodeEmitterTask emitter;
   CodeBuffer nativeBuffer;
@@ skipping 217 matching lines @@
         generateDefines(classElement);
       }
     }
 
     // Emit the native class interceptors that were actually used.
     for (ClassElement classElement in classes) {
       if (neededClasses.contains(classElement)) {
         ClassBuilder builder = builders[classElement];
         // Define interceptor class for [classElement].
         String className = backend.namer.getName(classElement);
         jsAst.Expression init =

[karlklose, 2013/07/19 09:29:40]

This expression is no longer used, as far as I see.

[ahe, 2013/07/19 10:00:00]

Done.

             js(emitter.classesCollector)[className].assign(
                 builder.toObjectInitializer());
-        mainBuffer.write(jsAst.prettyPrint(init, compiler));
-        mainBuffer.write('$N$n');
+        emitter.emitClassBuilderWithReflectionData(
+            className, classElement, builder,
+            emitter.bufferForElement(classElement, mainBuffer));
         emitter.needsDefineClass = true;
       }
     }
   }
 
   ClassBuilder generateNativeClass(ClassElement classElement) {
     assert(!classElement.hasBackendMembers);
     nativeClasses.add(classElement);
 
     ClassElement superclass = classElement.superclass;
@@ skipping 194 matching lines @@
       if (emitter.compiler.enableMinification) targetBuffer.add(';');
       targetBuffer.add(jsAst.prettyPrint(
           new jsAst.ExpressionStatement(init), compiler));
       targetBuffer.add('\n');
     }
 
     targetBuffer.add(nativeBuffer);
     targetBuffer.add('\n');
   }
 }