Refactor Library/CompilationUnit and how we define local Scope.

lib/compiler/implementation/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.
 
 class NativeEmitter {
 
   CodeEmitterTask emitter;
   CodeBuffer nativeBuffer;
 
   // Classes that participate in dynamic dispatch. These are the
@@ skipping 94 matching lines @@
     String className = compiler.namer.getName(classElement);
     nativeBuffer.add(className);
     nativeBuffer.add(' = ');
     nativeBuffer.add(nativeCode);
     nativeBuffer.add(';\n');
 
     void defineInstanceMember(String name, CodeBuffer value) {
       nativeBuffer.add("$className.$name = $value;\n");
     }
 
-    for (Element member in classElement.members) {
+    for (Element member in classElement.localMembers) {
       if (member.isInstanceMember()) {
         emitter.addInstanceMember(member, defineInstanceMember);
       }
     }
   }
 
   bool isNativeLiteral(String quotedName) {
     return quotedName[1] === '=';
   }
 
@@ skipping 300 matching lines @@
         if (!first) targetBuffer.add(",\n");
         targetBuffer.add(" $name: $function");
         first = false;
       });
       targetBuffer.add("\n});\n\n");
     }
     targetBuffer.add('$nativeBuffer');
     targetBuffer.add('\n');
   }
 }