Fix a pretty bad bug of a class inheriting a patched class. The fix is

sdk/lib/_internal/compiler/implementation/js_backend/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;
 
 /**
  * A function element that represents a closure call. The signature is copied
  * from the given element.
  */
@@ skipping 1179 matching lines @@
 
     void visitMember(ClassElement enclosing, Element member) {
       assert(invariant(classElement, member.isDeclaration));
       if (member.isInstanceMember()) {
         addInstanceMember(member, builder);
       }
     }
 
     classElement.implementation.forEachMember(
         visitMember,
-        includeBackendMembers: true,
-        includeSuperMembers: false);
+        includeBackendMembers: true);
 
     if (identical(classElement, compiler.objectClass)
         && compiler.enabledNoSuchMethod) {
       // Emit the noSuchMethod handlers on the Object prototype now,
       // so that the code in the dynamicFunction helper can find
       // them. Note that this helper is invoked before analyzing the
       // full JS script.
       if (!nativeEmitter.handleNoSuchMethod) {
         emitNoSuchMethodHandlers(builder.addProperty);
       }
@@ skipping 130 matching lines @@
     // overridden fields. Right now, we rely on the ordering so the
     // fields pulled in from mixins are replaced with the fields from
     // the class definition.
 
     // If a class is not instantiated then we add the field just so we can
     // generate the field getter/setter dynamically. Since this is only
     // allowed on fields that are in [classElement] we don't need to visit
     // superclasses for non-instantiated classes.
     classElement.implementation.forEachInstanceField(
         visitField,
-        includeBackendMembers: true,
-        includeSuperMembers: isInstantiated);
+        includeSuperAndInjectedMembers: isInstantiated);
   }
 
   void generateGetter(Element member, String fieldName, String accessorName,
                       ClassBuilder builder) {
     String getterName = namer.getterNameFromAccessorName(accessorName);
     String receiver = backend.isInterceptorClass(member.getEnclosingClass())
         ? 'receiver' : 'this';
     List<String> args = backend.isInterceptedMethod(member)
         ? ['receiver']
         : [];
@@ skipping 1787 matching lines @@
 """;
 const String HOOKS_API_USAGE = """
 // The code supports the following hooks:
 // dartPrint(message)   - if this function is defined it is called
 //                        instead of the Dart [print] method.
 // dartMainRunner(main) - if this function is defined, the Dart [main]
 //                        method will not be invoked directly.
 //                        Instead, a closure that will invoke [main] is
 //                        passed to [dartMainRunner].
 """;