Move the handling of operator[] into the new interceptors.

sdk/lib/_internal/compiler/implementation/native_handler.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.
 
 library native;
 
 import 'dart:uri';
 import 'dart2jslib.dart' hide SourceString;
 import 'elements/elements.dart';
 import 'js_backend/js_backend.dart';
@@ skipping 96 matching lines @@
       nativeClasses.forEach((c) => enqueueClass(c, 'forced'));
       flushQueue();
     }
   }
 
   void processNativeClassesInLibrary(LibraryElement library) {
     // Use implementation to ensure the inclusion of injected members.
     library.implementation.forEachLocalMember((Element element) {
       if (element.kind == ElementKind.CLASS) {
         ClassElement classElement = element;
-        if (classElement.isNative()) {
+        if (classElement.isNative() || classElement == compiler.listClass) {

[sra1, 2012/12/12 04:28:02]

And compile.stringClass?

It would be better to add the class(es) between lines 105/106 than check every
class for ==.

[ngeoffray, 2012/12/12 11:54:56]

Done. I also added string, int, double and bool as native classes.

           nativeClasses.add(classElement);
           unusedClasses.add(classElement);
 
           // Resolve class to ensure the class has valid inheritance info.
           classElement.ensureResolved(compiler);
         }
       }
     });
   }
 
@@ skipping 175 matching lines @@
     flushQueue();
   }
 
   processNativeBehavior(NativeBehavior behavior, cause) {
     bool allUsedBefore = unusedClasses.isEmpty;
     for (var type in behavior.typesInstantiated) {
       if (matchedTypeConstraints.contains(type)) continue;
       matchedTypeConstraints.add(type);
       if (type is SpecialType) {
         if (type == SpecialType.JsArray) {
-          world.registerInstantiatedClass(compiler.listClass);
+          enqueueClass(compiler.listClass, 'core type');
         } else if (type == SpecialType.JsObject) {
-          world.registerInstantiatedClass(compiler.objectClass);
+          enqueueClass(compiler.objectClass, 'core type');
         }
         continue;
       }
       if (type is InterfaceType) {
         if (type.element == compiler.intClass) {
           world.registerInstantiatedClass(compiler.intClass);
         } else if (type.element == compiler.doubleClass) {
           world.registerInstantiatedClass(compiler.doubleClass);
         } else if (type.element == compiler.numClass) {
           world.registerInstantiatedClass(compiler.numClass);
@@ skipping 575 matching lines @@
         builder.add(new HForeign(
             new DartString.literal('${parameter.name.slowToString()} = #'),
             const LiteralDartString('void'),
             <HInstruction>[jsClosure]));
       }
     });
     LiteralString jsCode = nativeBody.asLiteralString();
     builder.push(new HForeign.statement(jsCode.dartString, <HInstruction>[]));
   }
 }