Encode super calls via extra properties on prototypes.

pkg/dart2js_incremental/lib/library_updater.dart

 // Copyright (c) 2014, 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 dart2js_incremental.library_updater;
 
 import 'dart:async' show
     Future;
 
 import 'dart:convert' show
@@ skipping 588 matching lines @@
       compiler.internalError(element, '${element.runtimeType}');
     }
     String name = info.name;
     jsAst.Node function = info.code;
     List<jsAst.Statement> statements = <jsAst.Statement>[];
     if (element.isInstanceMember) {
       jsAst.Node elementAccess = namer.elementAccess(element.enclosingClass);
       statements.add(
           js.statement('#.prototype.# = f', [elementAccess, name]));
 
-      // TODO(ahe): Restore when isAliasedSuperMember is restored.
-      // if (backend.isAliasedSuperMember(element)) {
-      //   String superName = namer.getNameOfAliasedSuperMember(element);
-      //   statements.add(
-      //       js.statement('#.prototype.# = f', [elementAccess, superName]));
-      // }
+      if (backend.isAliasedSuperMember(element)) {
+        String superName = namer.getNameOfAliasedSuperMember(element);
+        statements.add(
+          js.statement('#.prototype.# = f', [elementAccess, superName]));
+      }
     } else {
       jsAst.Node elementAccess = namer.elementAccess(element);
       jsAst.Expression globalFunctionsAccess =
           emitter.generateEmbeddedGlobalAccess(embeddedNames.GLOBAL_FUNCTIONS);
       statements.add(
           js.statement(
               '#.# = # = f',
               [globalFunctionsAccess, name, elementAccess]));
       if (info.canTearOff) {
         String globalName = namer.globalObjectFor(element);
@@ skipping 159 matching lines @@
 
   PartialFunctionElement get after => null;
 
   void captureState() {
     if (wasStateCaptured) throw "captureState was called twice.";
     wasStateCaptured = true;
 
     if (element.isInstanceMember) {
       elementAccess = namer.elementAccess(element.enclosingClass);
       name = namer.getNameOfMember(element);
-      // TODO(ahe): Restore when isAliasedSuperMember is restored.
-      // if (backend.isAliasedSuperMember(element)) {
-      //   superName = namer.getNameOfAliasedSuperMember(element);
-      // }
+      if (backend.isAliasedSuperMember(element)) {
+        superName = namer.getNameOfAliasedSuperMember(element);
+      }
     } else {
       elementAccess = namer.elementAccess(element);
     }
   }
 
   PartialFunctionElement apply() {
     if (!wasStateCaptured) throw "captureState must be called before apply.";
     removeFromEnclosing();
     reuseElement();
     return null;
@@ skipping 274 matching lines @@
 
   ClassEmitter get classEmitter => backend.emitter.oldEmitter.classEmitter;
 
   List<String> computeFields(ClassElement cls) {
     // TODO(ahe): Rewrite for new emitter.
     ClassBuilder builder = new ClassBuilder(cls, namer);
     classEmitter.emitFields(cls, builder, "");
     return builder.fields;
   }
 }