Add support for super aliases to new emitter.

pkg/compiler/lib/src/js_emitter/new_emitter/model_emitter.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.new_js_emitter.model_emitter;
 
 import '../../dart2jslib.dart' show Compiler;
 import '../../dart_types.dart' show DartType;
 import '../../js/js.dart' as js;
 import '../../js_backend/js_backend.dart' show
@@ skipping 411 matching lines @@
   /// Descriptors are used in place of the actual JavaScript function
   /// definition in the output if additional information needs to be passed to
   /// facilitate the generation of tearOffs at runtime. The format is an array
   /// with the following fields:
   ///
   /// [Method.code]
   /// [DartMethod.callName]
   /// [DartMethod.tearOffName]
   /// [JavaScriptBackend.isInterceptedMethod]
   /// functionType
+  /// [InstanceMethod.aliasName]
   ///
   /// followed by
   ///
   /// [ParameterStubMethod.name]
   /// [ParameterStubMethod.code]
   ///
   /// for each stub in [DartMethod.parameterStubs].
 
   static final String parseFunctionDescriptorBoilerplate = r"""
 function parseFunctionDescriptor(proto, name, descriptor) {
   if (descriptor instanceof Array) {
     proto[name] = descriptor[0];
     var funs = [descriptor[0]];
     funs[0].$callName = descriptor[1];
-    for (var pos = 5; pos < descriptor.length; pos += 3) {
+    for (var pos = 6; pos < descriptor.length; pos += 3) {
       var stub = descriptor[pos + 2];
       stub.$callName = descriptor[pos + 1];
       proto[descriptor[pos]] = stub;
       funs.push(stub);
     }
     if (descriptor[2] != null) {
       var isIntercepted = descriptor[3];
       var reflectionInfo = descriptor[4];
       proto[descriptor[2]] = 
           tearOff(funs, reflectionInfo, false, name, isIntercepted);
     }
+    // Install the alias for super calls on the prototype chain.
+    if (desc[5] != null) {
+      proto[desc[5]] = desc[0];
+    }
   } else {
     proto[name] = descriptor;
   }
 }
 """;
 
   js.Expression _generateFunctionType(DartType memberType) {
     if (memberType.containsTypeVariables) {
       js.Expression thisAccess = js.js(r'this.$receiver');
       return backend.rti.getSignatureEncoding(memberType, thisAccess);
     } else {
       return js.number(backend.emitter.metadataCollector.reifyType(memberType));
     }
   }
 
   Iterable<js.Expression> emitInstanceMethod(Method method) {
 
     List<js.Expression> makeNameCodePair(Method method) {
       return [js.string(method.name), method.code];
     }
 
     List<js.Expression> makeNameCallNameCodeTriplet(ParameterStubMethod stub) {
       js.Expression callName = stub.callName == null
           ? new js.LiteralNull()
           : js.string(stub.callName);
       return [js.string(stub.name), callName, stub.code];
     }
 
-    if (method is DartMethod) {
-      if (method.needsTearOff) {
+    if (method is InstanceMethod) {
+      if (method.needsTearOff || method.aliasName != null) {
         /// See [parseFunctionDescriptorBoilerplate] for a full description of
         /// the format.
         // [name, [function, callName, tearOffName, isIntercepted, functionType,
-        //     stub1_name, stub1_callName, stub1_code, ...]
+        //     aliasName, stub1_name, stub1_callName, stub1_code, ...]
         bool isIntercepted = backend.isInterceptedMethod(method.element);
         var data = [method.code];
         data.add(js.string(method.callName));
         data.add(js.string(method.tearOffName));
         data.add(new js.LiteralBool(isIntercepted));
         data.add(_generateFunctionType(method.type));
+        if (method.aliasName != null) {
+          data.add(js.string(method.aliasName));
+        } else {
+          data.add(new js.LiteralNull());
+        }
         data.addAll(method.parameterStubs.expand(makeNameCallNameCodeTriplet));
         return [js.string(method.name), new js.ArrayInitializer(data)];
       } else {
         // TODO(floitsch): not the most efficient way...
         return ([method]..addAll(method.parameterStubs))
             .expand(makeNameCodePair);
       }
     } else {
       return makeNameCodePair(method);
     }
@@ skipping 273 matching lines @@
 
   var end = Date.now();
   print('Setup: ' + (end - start) + ' ms.');
 
   #main();  // Start main.
 
 }(Date.now(), #code)
 }""";
 
 }